Windsurfing self-rescue: never leave the board, assess the situation, paddle or signal for help – and why offshore wind and cold water set the rules.
What do you do in windsurfing when the wind dies or something breaks? You stay with your board, keep calm and then decide: in a wind drop near shore you paddle back with the rig on the tail; in strong wind, gear failure or exhaustion you stay on the board and call for help [1][2].
The honest answer: self-rescue is not a trick you "try out sometime" but a decision you make before you start. The key rule you have already read: not alone, no offshore wind, no departure without a way back. In a study of serious windsurfing accidents, evaluated by a review, 63 % of those involved were inexperienced (14 of 22), and the review lists, among the preventive measures proposed so far (weakly supported), avoiding offshore wind and not sailing alone at unfamiliar venues [5].
This guide is a learning skill with a high safety demand. It explains the logic so you understand in your course why you practise it. It does not replace supervised training: you practise these techniques for the first time with an instructor and a rescue boat in safe water, not on your own.
Check weather, wind strength and wind direction. With wind blowing onshore or along the shore, you first beat upwind and gain height, then sail back downwind. That way you also get home more easily when tired [1].
Milestone: you can say in one sentence where the wind comes from and where you will drift if nothing works.
Keep calm. The board is the "unsinkable life raft". Swimming back to shore without gear is considered an absolute no-go. If sail and board separate, swim to the board first [2].
Physiology agrees: in cold water, cold shock (the uncontrolled gasp on immersion) and cold-induced physical incapacitation are regarded as precursors of collapse and submersion [4].
Case A: no wind, shore nearby. Slide the boom down the mast so the rig lies more stable and place it on the tail with the boom. Lie on your stomach on the nose and push your legs under the sail on both sides. Then you paddle. This does not work on very small, short boards and only in calm to light wind [2].
Case B: strong wind, gear failure, exhaustion. Stay on the board, because the body cools much faster in water than in air. Lay the sail in the water: it acts as a drift anchor and slows your drift, especially in offshore wind [2].
Case C: none of this works. Give distress signals (step 4).
Kneel on the board, spread your arms out to the sides and cross them above your head. Repeat constantly (the "tired fly"). Alternatively swing a bright object, for example your harness, in circles [2]. If you carry a phone in a waterproof case, the emergency call is the last option [2].
People sitting in the water overestimate the distance: in trials with swimmers in 10 to 14 °C water, participants judged distances about three times too long but usually (86%) made the right decision early on. After about 30 minutes of swimming or passive cooling, decision-making deteriorated. Hence the rule: fix your plan early, right after the cold shock has subsided [3]. Important: that overview considers swimming with a life jacket in cold water possibly viable; for windsurfers the teaching rule still applies to stay with the board [2].
Ask your windsurfing school to practise self-rescue with you on a warm day in knee-deep water before you need it. You learn something no text conveys: how the board lies with the rig on the tail and how much weight it carries. Once you have felt it, you stay calmer in a real emergency – and calm is half the way back to shore.
Stay on the board, keep calm and check how far the shore is. In a calm with the shore nearby you lay the rig on the tail and paddle. If that is not enough, lay the sail in the water as a drift anchor and give distress signals [2].
Kneel on the board, spread your arms out to the sides and cross them above your head. Repeat constantly (the "tired fly"). You can also swing a bright object in circles [2].
No. The board is your life raft; swimming without gear is considered an absolute no-go [2]. In cold water, swimming fails according to Ducharme & Lounsbury probably through fatigue of the cooled arm muscles rather than general hypothermia, regardless of swimming ability [3].
You drift away from shore quickly after a breakdown or exhaustion, and you barely feel wind on the shore because buildings and trees block it. Only about 100 metres out does it unfold its full force [1]. That is why beginners avoid offshore wind [5].
The Basic Gybe in Windsurfing: Changing Direction Downwind