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Spring into action slowly but surely after a longer break between dives. Photo by Alex Kydd. Partial as I am to pies, chips, peas and as many garishly colored fatty sauces as I can cram in, there comes a time when the wetsuit constricts the internal organs so much that radical action is called for. With the new diving season nearly upon us, it’s an opportune moment to review the best ways to trim down and ease those rusty diving muscles back into action. Ease those rusty diving muscles back into action. Photo by Alex Kydd. Improve fitness Get in shape with some cardiovascular exercise, eg. running, swimming or cycling (as well as getting the ticker pumping, this will help develop flexibility, tone and strength in the core muscles of the back, abdomen and legs). Stay hydrated Keep those fluids up, particularly if you’ve had alcohol in the 24 hours before diving. It takes a few days to really get hydrated so stay on top of your water intake. Easy start Short, shallow, and in calm conditions are the only way to get back into the water after a pause. Diving is more fun when it is safer, and careful preparation, visualizations and warm up dives are good practice. Stop smoking No other action will have a more positive effect on your gas consumption, bottom times and overall health. Lose weight A lighter, more hydrodynamic physique will benefit you before, during and after dives. Service kit Regulators and demand valves in particular. Ensure your BCD/dry suit is working properly, your computer has sufficient battery power and the rest of your kit is in good condition – preferably before you get to the dive site! Test dives Try out any new equipment in a pool/sheltered area to get used to it. This goes for recently serviced kit too, have a few dives and be sure you are ready togo diving. |mportant O2 Ensure you have access to oxygen in case of emergency, and make sure you have enough to last. Everyone should know where the oxygen is stowed whilst you are diving, if you aren’t sure then make it your business to find out. Be prepared Keep the details of your nearest chamber/helpline to hand, and if in any doubt, call them earlier rather than later, Photo by Alex Kydd. And remember, some basic but often overlooked ways of minimizing your inert gas burden and decompression stress: Plan the Dive, Dive the Plan Stay well within your planned dive parameters – your computer has an algorithm but has no idea of how tired/unfit/hungover you are, so don’t push its limits Slowly does it Keep your ascent rate controlled – watch your buoyancy, particularly in the shallow part of the water column. Safety chill Incorporate safety stops and pad them out if you have spare gas to do so, especially when you’ve been diving deep, strenuously, or in cold water. Imagine all the wonderful encounters you may experience if you hangout out a little bit longer underwater. Post dive chill Avoid doing any hard exercise for several hours after the dive (this includes lugging all your kit up hill) – bubbles are liberated from off-gassing tissues for some time after you’ve surfaced, and the less they are agitated the better. Multi day chill If you’re diving on multiple occasions over several consecutive days, try to insert a dive-free day every 2-3 days to allow your tissues to desaturate completely. Stay down Don’t go to altitude sooner than is recommended – generally 24 hours from completing your last dive. Photo by Alex Kydd. It’s worth emphasizing that in spite of doing everything correctly, and following all the established preventative strategies outlined above, divers still get bent for no apparent reason. There’s no justice in this world, and life is inherently unfair. So make the call, ask for advice, alert someone, even if you feel you can’t possibly have DCI - any symptom that wasn’t present before the dive should be assumed to be DCI until proven otherwise. About Dr Oli Dr Oli, Hyperdive.co.uk, much like the surface of our blue dot planet Earth, is approximately 60-70% water. He constantly strives to put much of the other 30-40% to good use in the field of diving medicine. Serving as the Medical Director and Senior Hyperbaric Physician at London Diving Chamber, UK for 13 years, this post at one of the busiest hyperbaric chambers in the UK has given him extensive experience in the assessment and management of all types of diving accidents and emergencies. In addition he has gained a thorough knowledge of the practice of hyperbaric medicine, for non-diving conditions.

It is with great sadness that we announce the news that our beloved Dr Bruce Wienke, a true pioneer in his field of dive specific algorithm design, has passed away leaving behind a great legacy. A keen diver, and downhill skier, Dr Wienke’s interest in diving was reflected in his achievements, and great success as seen in his accolades. His astonishing CV included Instructor Trainer and Technical Instructor with NAUI, a Master Instructor with PADI, Institute Director for YMCA, and an Instructor Trainer/Technical Instructor for SDI/TDI. “Most of the diving I have done has always been interesting and exciting. To my Australian friends, diving the Great Barrier Reef was incredible. Another favourite place is diving underneath the Arctic ice. It is just amazing; the water is cold of course, but it is just amazing. It is so clear, and perhaps because of the overhead ice and the associated underwater activity it’s like diving in a three dimensional surrealistic world. It is fantastic, and contrary to what you might think there is a variety of life down there. Very cool.” Dr Bruce Wienke. Dr Wienke joined Suunto in the late 90’s, where he hit the ground running and didn’t stop. The collaboration arose after some of his diving work published on core screen modelling in the open literature and was noticed by Ari Nikkola who was at the time presiding over the inhouse the algorithm development at Suunto. Employing his great expertise in the diving specific algorithm field, he joined Ari Nikkola in the development of the revolutionary Reduced Gradient Bubble Model (RGBM). The RGBM, a name first coined by Dr Wienke, is a dual phase approach to staging diver ascents over an extended range of diving applications (altitude, nonstop, decompression, multiday, repetitive, multilevel, mixed gas, and saturation) and a giant stride forward from previous modified Haldanean decompression models. Prior to joining the Suunto family, Dr Wienke was a Program Manager in the Nuclear Weapons Technology Simulation and Computing Office at the Los Alamos National Laboratory (LANL) where he completed research up until his death. As head of the LANL Nuclear Counter Measures Dive Team involving Special Warfare Units both above and below the water, he trained alongside the special forces well into his 70s. His interests were in computational decompression models, gas transport, and phase mechanics. He was the author of five monographs on his field, as well as more than 200 technical journal articles and was an active contributor to underwater symposia, educational publications, technical periodicals and decompression workshops. Alongside his high achieving work life, he served actively as a consultant for decompression algorithms within the dive industry and he worked with Divers Alert Network, DAN, on applications of high performance computing and communications for diving. Wienke’s first Suunto dive computer releases were the Vyper and Cobra in 1999, which is still accompanying divers all over the world on their underwater adventures, shortly followed by the iconic, best-selling Suunto Stinger dive computer. With his continued support, Suunto together with Dr Wienke, using his own source code, created the Technical RGBM. Now including helium gas, and rated to a depth of 120m, the Suunto HelO2 and D9tx opened the door to the technical dive market. A major new release in 2012 from Dr Wienke saw the Suunto Fused RGBM which combined the Full RGBM and the Technical model. Greatly benefiting both the recreational and technical diver, the algorithm now supported rebreathers, and new depths were conquered with a 150m rating. The Suunto Fused™ RGBM 2 can be found in the latest releases, the Suunto Eon Series and the D5. The algorithm manages dissolved gas and free-gas in both the tissues and blood of a diver making it significantly smarter than any previous models. Dr Wienke described this algorithm as a supermodel. Dr Bruce Wienke was a widely regarded and respected figure of the dive industry, and he will be by missed all his Suunto family. He died on Saturday 15th February 2020, and is survived by his wife, Annie.

© Philipp Reiter For us mere mortals, the Hoch Tirol ski route in the Austrian Alps usually takes six days of gut busting effort and every ounce of our endurance. German ski mountaineer and trail runner Philipp Reiter and fellow runner and ski mountaineer Frenchman Francois D'haene aim to cover the 100 km and 10,000 m vertical gain in 24 hours starting this coming Monday. Both men enjoy a challenge. “There’s a saying that it’s well known that something isn’t possible, and then someone comes along and just does it,” Philipp says. “You set a new limit and show that something once considered impossible is possible.” To Philipp, this is what Suunto World Vertical Week is all about; taking on personal challenges. “For myself, when I have overcome a challenge like this, and I have other challenges not connected to sports, I understand if I just keep taking steps towards the goal I’ll eventually reach it.” You can follow their adventure live and enjoy the beauty of the Austrian Alps; Philipp and Francois will be posting shots live from their adventure to our Instagram feed. Click to find out about the Suunto World Vertical Week 2020 photo contest! © Philipp Reiter When Philipp isn’t out training in the hills, he works as a photographer for Salomon, capturing the action at big races in Europe. Over the last few years Francois noticed that he won all of the races when Philipp was at them working. “Eventually we decided to do something together, which is quite nice,” Philipp says. Considered the queen of all ski routes, the Hoch Tirol route begins in Kasern in South Tyrol, and traverses Austria’s fourth highest mountain, Großvenediger (3657 m), and ultimately ends on the summit of the nation’s highest mountain, Großglockner (3798 m). Philipp and Francois will start their journey around 9am on February 24, pushing hard to cover as much ground as possible before night falls and the going gets tougher. “The second stage will be the toughest,” Philipp says. “Navigation will be a challenge. It will be cold and we will be tired.” Follow Philipp and Francois's adventure live here. Lead images: © Philipp Reiter Read more articles This challenge will take you higher! Must run routes around the globe! Which nation runs the fastest? 10 fun facts from 2019.

© Phillipp Reiter   Believe it or not, there’s a hill or mountain somewhere that’s looking down at you laughing. It believes you’re a weakling. Do you have what it takes to shut it up? That’s what Suunto’s annual World Vertical Week is about for the thousands of fans who participate each year. They find a nearby range, hill, or mountain that’s looking at them disrespectfully, and show that large mass of rock and earth who’s boss. As Sir Edmund Hillary famously suggested, there’s something satisfying about knocking the bastard off. Seriously though, World Vertical Week is about the joy of a challenge, of sweating like a beast, and overcoming one’s resistance to fighting gravity to reach a summit. It’s an inexplicable human urge. All we know is we feel incredible after. To make it even more fun, we give you three incentives below to participate! To participate in Suunto World Vertical Week 2020, open Suunto app and click the Vertical Week link in your inbox (the bell symbol on the top of your screen takes you to your inbox).     © Phillipp Reiter New decade, new challenge Starting on Sunday, February 23 and ending Sunday, March 1, this fifth edition of Suunto World Vertical Week also marks the first of a new decade. That’s why we want it to be the best ever. For this reason we are sending out two special, optional challenges: climb 1000 m of vertical in one day during the week. Or, if that’s not possible, climb 1000 m over the whole week. That’s only a puny 150 m a day! Just imagine that arrogant hill sniggering if you fail! Be in to win a Suunto watch To give you extra incentive, we are running a photo contest on Instagram over the week, and will give away a Suunto 7 smartwatch or a Suunto 9 to three of the most inspiring photos that enter. All you need to do is share an image with a Suunto app data overlay and tag #verticalweek. We will decide the winners at the end of the week! Click here to learn how to share your activities with Suunto app. (Terms and conditions apply. Check them here.)  Rep your nation and sport You can join the challenge on Suunto app, log all your efforts, and also compete for your nation and activity type. Last year, Italy came out on top for average ascents during the week. Spain also kicked ass; it came first in three divisions, and was also in the top five for four different activities. Will they continue to dominate? To kickstart your competitive spirit, click here to see the results of last year’s Suunto World Vertical Week! Lead images: © Phillipp Reiter Read more articles! Raising the stakes for Suunto World Vertical Week 7 tips to plan a route in the mountains Which nation runs the fastest? 10 fun facts from 2019 10 ways to make your adventures more sustainble How to find your way in the mountains.

An explorer alone in a frozen landscape breaks into the ice and descends into a vast, alien underwater world with no light besides what she carries. The eerie atmosphere, the unknown behind the curtain of darkness, the presence of another, all create tension in this film praised as a cinematic masterpiece. Initially released in 2018, Dive Odyssey, by Finnish filmmaker Janne Kasperi Suhonen, is the story of an explorer and an aquanaut meeting in a mystical underwater labyrinth, hidden from the world by deep snow and frozen ground. “I often make the analogy between technical diving and space,” says underwater explorer Andy Torbet, who plays the enigmatic aquanaut in the film. “The cold, the darkness, the psychology and the total reliance on your equipment to survive. But more than that you are entering the most alien, other-worldly place in our planet. And if you needed any convincing the aquatic world is one of alien wonder this film does just that.” Photo by Dive Odyssey. The film was shot in the old and long abandoned Ojamo limestone mine near the city of Lohja, 60 km from Helsinki. It’s now a modern day diver’s paradise with many kilometers of tunnels to explore, all starting at a depth of 28 m, and descending to 250 m. The main character in the film, the mysterious orange clad explorer, is played by technical and cave dive Gemma Smith. Shooting the film was no glamourous Hollywood acting gig. “As we all know roses grow out of the dirt and in this case, the dirt was the hardest diving I have ever done,” she says. “I am so proud of this project that when I am 90 years old, I will still look back on these dives and be impressed.” Photo by Dive Odyssey. Enduring four to five hour long dives in 2° C water was a challenge for the dive team. Add to that the need for a large amount of equipment, self dug entrance holes in the ice, and the requirement to film at night to ensure the popular dive spot was empty. “Imagine this: rebreathers, scooters, overhead environments, large decompression obligations with a reverse thermocline at the surface as we hit the lake to decompress once we were out of the mine – and all at night time,” Gemma says. After the dive team’s first dive in Ojamo, a short two hour jaunt, they returned to the surface only to discover that the exit hole had frozen over. The surface team quickly broke the ice to set the divers free. After that, strict surface protocols were followed to continually break the ice and prevent the exit from freezing over again. “With water temperatures hitting 0° C diving conditions were tough,” Andy says. "Mix in dives to almost 100 m with kilometres of underground scootering carrying torches and cameras and you begin to realise this was a team effort where every individual is top of their game. It’s an environment most people would never choose to go, let alone make a film in. But the people made it possible.” In order to dive the Ojamo mines, or any overhead dive environment, special training and equipment are required. The tunnels are perfect for cave and mine divers to explore. They are horizontal, and in layers with constant depths. The longest straight stretch is 1.7 km. Ojamo has become one of the most popular dive sites not only in Finland, but all of Scandinavia. Suunto dive engineers regularly dive in the mine. The team of dedicated divers have amassed thousands of hours inside the tunnels while testing Suunto technology. This is an important part of the development process, and to constantly improve to ensure all Suunto devices meet strict performance targets. It wasn’t always a labyrinthine diving paradise. Back in the 18th century it was limestone mine, and was then converted into a prison camp during the Second World War, when Finland was fighting the Soviet Union. The prisoners worked around the clock in hellish conditions until the end of the war. Mining operations recommenced after the cessation of hostilities, but not for long, however. The value of limestone plummeted in the 1960s; the mine was abandoned, leaving it to slowly fill with water and ultimately preserving its magic and history. Diving inside the eerie tunnels through the crystal clear water you can see what was left behind, including extensive tunnel systems, miners tools scattered on the floor, lightbulbs that look ready to switch on, even boxes of dynamite lay frozen in time in the cold water. Divers have spent many years exploring and mapping the system, keen to discover unexplored routes. Why not explore this underwater adventure park yourself? Learn more about the film here: https://diversofthedark.com/ https://www.diveodyssey.net/ Lead image: Photo by Divers of the Dark

登山ルートを計画するとき、地図上の距離だけで行程を決めるのは危険です。同じ10kmでも、標高差、登山道の状態、天候、荷物、メンバーの経験によって、必要な時間と体力は大きく変わります。 安全な計画では、目的地までの線を引くだけでなく、引き返す時刻、代替ルート、休憩、日没、通信状況なども事前に考えます。GPSウォッチやアプリは計画と現在地確認に役立ちますが、山のリスクをなくすものではありません。 この記事では、登山ルートを計画する際に確認したい7つのポイントと、作成したルートをSuuntoウォッチで活用する方法を解説します。 目次 登山前にルート計画が必要な理由 1. 目的地と目的を明確にする 2. メンバーに合う難易度を選ぶ 3. 地形図でルートを確認する 4. 距離・標高差・時間を見積もる 5. 天候と季節のリスクを調べる 6. 代替ルートと撤退基準を決める 7. 計画を共有して登山届を提出する Suuntoでルートを準備する 出発前チェックリスト よくある質問 まとめ 登山前にルート計画が必要な理由 山では、道迷い、転倒、体調不良、急な天候変化などが起こる可能性があります。準備が不十分なまま予定より行動が遅れると、日没や気温低下など別のリスクも重なります。 ルート計画の目的は、予定どおり山頂へ着くことだけではありません。自分たちが安全に行動できる範囲を知り、状況が変化したときに中止・短縮・撤退を判断できるようにすることです。 初めて地図を使って計画する場合は、まず歩いたことのある場所や、整備された低山などから練習すると、地図上の情報と実際の地形を結びつけやすくなります。 1. 目的地と登山の目的を明確にする 最初に「どこへ行くか」「何を楽しみたいか」「使える時間はどのくらいか」を決めます。山頂を目指すのか、景色や自然観察を楽しむのか、トレーニングとして歩くのかによって、適したルートは変わります。 目的地だけでなく、登山口、下山口、休憩候補、分岐、山小屋などの主要地点も確認します。周回ルートでは、途中から元の道へ戻りにくい場合があるため、往復ルートとの違いも検討しましょう。 2. メンバーに合う難易度を選ぶ 計画は、グループで最も経験や体力の少ないメンバーを基準にします。普段の運動量だけでなく、登山経験、岩場や急斜面への慣れ、荷物の重さ、高所や暑さ・寒さへの対応力も考慮してください。 コースの難易度表示は参考になりますが、天候や季節によって実際の難しさは変わります。初心者を含む場合は、予定より余裕のある距離と時間を選び、難しい区間を避けられるルートも確認しておきます。 3. 地形図でルートを確認する 観光案内図だけでなく、等高線や地形、登山道を確認できる地形図を使います。ルート全体を眺め、次の要素を確認しましょう。 尾根、谷、峠、山頂などの大きな地形 急な上り下りや長く続く斜面 分岐、登山道が不明瞭になりやすい場所 予定を短縮して下山できるエスケープルート 沢や川を渡る場所 崖、岩場、露出した尾根など注意が必要な場所 山小屋、避難場所、水場、トイレ 携帯電話がつながりにくい可能性のある場所 等高線の間隔が狭い場所は傾斜が急で、広い場所は比較的緩やかです。ただし、地図だけでは登山道の崩落や積雪、倒木など最新の状況までは分かりません。山小屋、自治体、管理者などが発信する現地情報も確認してください。 4. 距離・標高差・行動時間を見積もる 行動時間は距離だけで決まりません。累積上昇量、下りの長さ、路面、休憩、混雑、荷物、メンバーの歩行速度を含めて考えます。 地図やルート作成サービスに表示される所要時間は目安です。休憩、写真撮影、衣服の調整、分岐の確認などに使う時間を加え、初めてのルートではさらに余裕を持たせます。 次の時刻を事前に決めておくと、進行状況を判断しやすくなります。 出発予定時刻 主要な分岐・山頂への到着予定時刻 引き返す最終時刻 下山予定時刻 日没時刻 最も遅い人のペースを基準にし、日没直前ではなく、明るいうちに余裕を持って下山できる計画にします。ヘッドライトは予定にかかわらず携行しましょう。 5. 天候と季節のリスクを調べる 出発前には、山域の天気予報、気温、降水、風、雷の可能性を確認します。山頂や稜線は、登山口より気温が低く、風が強い場合があります。 前日が晴れていても、雨による増水やぬかるみ、積雪・凍結、残雪などが残ることがあります。夏は熱中症や雷、秋冬は日没の早さと低温、積雪期は雪崩など、季節特有のリスクも考慮してください。 行動中は、対応するSuuntoウォッチのウェザーアラート（ストームアラーム）も、天候悪化に気づくための補助として活用できます。急な気圧低下を検知して通知されたら、空の暗さ、雲の発達、風、雷鳴など周囲の変化を確認し、稜線や山頂へ進む前に下山・撤退ルートを検討しましょう。ウェザーアラートは雷や雨を直接検知する機能ではなく、利用できる機能や設定はモデルによって異なります。出発前の公式な気象情報と現地の状況を優先してください。 ▶︎雲の変化やウェザーアラートの見方は「登山で役立つ雲の種類｜天気の変化と危険のサインを見分ける方法」で解説しています。 予報が悪い場合は、装備を増やして強行するのではなく、行き先や日程を変える、中止するという選択肢を持ちます。現地で予想より天候が悪化した場合も、早めに引き返してください。 6. 代替ルートと撤退基準を決める 計画したルートが通れない場合に備え、短縮して下山できるエスケープルート、同じ道を戻る地点、避難できる場所を確認します。あわせて、水場の位置や営業中の山小屋も地図上で確認しておきましょう。ただし、水場は渇水や凍結などで利用できない場合があるため、必要量の水は出発時に携行するのが基本です。分岐を通過する前に、その先へ進んでも安全に戻れる時間が残っているか判断します。 撤退基準は、山の中で迷いながら決めるのではなく、出発前に具体的にしておきます。 決めた時刻までに主要地点へ到着できない 雷、強風、大雨など天候が悪化した 登山道の崩落、増水、積雪などで通行が難しい メンバーに痛み、体調不良、強い疲労がある 現在地や進行方向に確信が持てない 山頂へ到着することより、全員が安全に下山することを優先します。 7. 計画を共有して登山届を提出する 登山前に、ルート、メンバー、装備、出発・下山予定時刻、緊急連絡先を全員で共有します。家族や知人など山行に参加しない人にも、計画と帰宅予定を伝えておきましょう。 山域に応じた方法で登山届・登山計画書を提出します。オンライン、登山口の提出箱、警察への提出など、地域によって方法が異なります。計画を変更した場合は、共有先にも変更内容を伝えてください。 登山届は救助を保証するものではありませんが、万一の際に予定ルートやメンバー情報を伝える重要な手がかりになります。 Suuntoで登山ルートを準備する Suuntoアプリでは、ルートを計画し、対応するウォッチへ同期できます。事前に地図上で距離や標高プロファイルを確認し、主要な分岐や山小屋などを目印として設定しておくと、行程をイメージしやすくなります。 Suunto Vertical 2は、長時間の登山やアウトドア活動で、地図とルートナビゲーションを活用したい人の選択肢です。 Suunto Race 2は、大きなAMOLEDディスプレイで地図やトレーニングデータを確認し、登山から持久系スポーツまで幅広く取り組みたい人に適しています。 Suunto Race Sは、コンパクトなサイズで日帰り登山、トレイルランニング、日々のトレーニングを記録したい人の選択肢です。 対応機能はモデルやソフトウェアのバージョンによって異なります。出発前にルートが正しく同期されているか、地図を表示できるか、バッテリー残量が十分かを確認してください。 ウォッチやスマートフォンの故障、電池切れ、GPS受信不良に備え、必要に応じて紙の地図とコンパス、予備電源も用意します。 ▶︎ルートの作成・同期手順は「GPXルートをSuuntoウォッチに入れる方法」をご覧ください。 ▶︎登山中の使い方は「登山・トレイルでルートをナビゲーション｜Suuntoクライムガイダンスの使い方」で解説しています。 ▶︎道迷いへの備えは「登山・ハイキングの安全対策｜迷ったときに取るべき行動と出発前の準備」も参考にしてください。 出発前チェックリスト 目的地、ルート、距離、累積標高差を確認した メンバーの経験と体力に合う難易度を選んだ 行動時間、休憩、引き返す時刻、日没を確認した 天気予報と最新の登山道情報を確認した エスケープルート、撤退地点、避難場所、水場を確認した 対応ウォッチのウェザーアラート設定を確認した 食料、水、防寒着、雨具、救急用品、ヘッドライトを準備した ウォッチとスマートフォンを充電し、ルートを同期した 登山届を提出し、家族などへ計画を共有した よくある質問 登山ルートは距離だけで選んでもよいですか？ 距離だけでは判断できません。累積標高差、傾斜、登山道の状態、技術的な難易度、天候、メンバーの体力なども確認してください。 ルートをウォッチへ入れれば紙の地図は不要ですか？ ウォッチは現在地確認やナビゲーションに役立ちますが、故障や電池切れの可能性があります。山域、ルート、経験に応じて紙の地図とコンパスも携行し、事前に使い方を練習してください。 予定より遅れていても山頂が近ければ進んでよいですか？ 山頂までの距離だけでなく、その後の下山時間、天候、日没、メンバーの状態を考えます。事前に決めた引き返す時刻を守り、安全な下山を優先してください。 まとめ｜安全に戻るところまでが登山計画 登山ルートの計画では、目的地までの距離だけでなく、標高差、地形、難易度、所要時間、天候、撤退方法を確認します。メンバーに合う余裕のある行程を選び、引き返す時刻と代替ルートも事前に決めておきましょう。 Suuntoアプリと対応ウォッチは、ルート作成、標高プロファイルの確認、登山中のナビゲーションに活用できます。ただし、デジタル機器だけに依存せず、装備、登山届、計画共有を含めて準備することが大切です。 計画したルートをウォッチへ Suuntoの地図とルートナビゲーションを、登山前の準備と山での現在地確認に活用しましょう。 Suuntoウォッチを見る