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Drop a pin, save a life: mapping the hazards that catch paddlers out

Offshore winds, weirs and hidden currents cause most paddleboarding rescues. How to spot the hazards that catch people out, and mark them on a map your paddling friends can see.

PaddleScout · 6 June 2026 · 3 min read

A dark, moody stretch of open water under a heavy sky, the surface streaked and uninviting, the far shore lost in murk.

In 2024 the RNLI launched to paddleboarders 134 times, and 73 of those rescues, 54%, were people blown out to sea by offshore winds. Most trouble on the water is not bad luck. It is a short list of hazards that catch people out again and again, and every one of them is knowable. Once you know one, you can mark it so your friends know it too.

The wind that pushes you out

The biggest single hazard is offshore wind, the breeze that blows from the land out to sea. It feels gentle on the beach and turns the paddle home into a fight you can lose. In the south-west, the RNLI puts 90% of paddleboarder call-outs down to it. Our post on offshore wind covers why. On a map, the thing worth marking is the exposed stretch where a light-looking wind becomes a one-way ticket.

Weirs and what they hide

Inland, the deadliest hazard is often the one that looks calmest. Water pouring over a weir drives to the riverbed and curls back on itself into a recirculating 'towback' that can hold a person under, and it can be almost invisible from upstream. In October 2021, four paddleboarders on a guided tour drowned when they were caught in the towback at Haverfordwest town weir; the official investigation found they 'became trapped at the weir by the hydraulic towback'. The Environment Agency's guidance is blunt: stay away from weirs, locks and sluices. If you know one on your water, it belongs on the map.

Currents you cannot see

Moving water is the third catch. A current or a tide can make it impossible to paddle back the way you came, which is why the RNLI says to 'only go out when the tide will help you get back to shore'. In 2024, 61% of the UK's accidental drownings happened on inland waters, where the flow around weirs, bridges and narrows does much of the damage. These are local facts, learned once and worth passing on.

Turn what you know into a pin

This is what hazard pins are for. In PaddleScout you can drop a pin exactly where a hazard sits, mark it as a hazard rather than a launch or a car park, and share it with your paddling friends, so the knowledge that took you a season to gather reaches them before their first visit. A launch with a pinned weir, or a pinned offshore-exposed stretch, is a safer place to send someone new.

Pair the hazard pins with the launch and parking pins from our post on UK launch spots, and a newcomer arrives knowing three things at once: where to put in, where to park, and what to keep well clear of.