BOAT-COMPARATOR Guide

Anchoring: what to do if the anchor drags

Set the anchor well, spot a dragging anchor and react fast: the right reflexes at anchor for your rental, and how to spend a quiet night aboard at sea.

A good anchorage is first an anchor that holds. On a rental boat, a dragging anchor is one of the most common frights, and yet often avoidable with a little method. Here is how to dig in well from the start, recognise a dragging anchor in time and react without panicking, by day and for a night at anchor.

Set the anchor well from the start

Choose a bed of light sand, which grips better than rock or weed that is off-limits to anchoring in some areas, and approach head to wind with the engine idling. Pay out enough chain: the more you give, the flatter the anchor lies and bites into the bottom. Once it is down, motor gently astern to dig it in, then check against transits or the GPS that it is truly holding before you switch off. Our guide on anchoring and mooring etiquette details the method, the scope to give and the etiquette between neighbours.

Recognise a dragging anchor

A dragging anchor gives itself away with simple signs: the boat moves back when it should stay head to wind, landmarks slide slowly by, the gap to a neighbour changes, the chain shudders, jumps or snatches. When you anchor, take two or three visual transits lined up ashore and keep an eye on the GPS track. Doubt itself is a signal: as the wind builds, better to check once too often than to discover the problem on the rocks.

What to do immediately

If the anchor drags, start the engine without delay, hold neutral while you assess the situation and the room around you, then take control by easing gently ahead to relieve the chain. Often you must weigh anchor and reset farther off, on a better bottom, with more scope. Never stay passive hoping it will hold: act while you still have open water ahead and margin to leeward.

Prevent rather than react

Many drags come down to overconfidence: too little chain, a poorly chosen bottom or a rushed check when setting the anchor. Always take the time to confirm the hold before swimming or going below for lunch, and keep an escape route in mind if the wind gets up. A few minutes of attention at the start very often save an emergency manoeuvre later on, at the worst possible moment.

Spend a quiet night

Anchoring for the night, oversize your scope, pick water sheltered from the forecast wind shift and note your neighbours and their swinging circle. An anchor alarm on the GPS or an app is reassuring, without replacing a regular look around before you sleep. For safe-stop ideas, see our best anchorages on the French Riviera. On Boat-Comparator, compare offers to find a boat well equipped with windlass and chain.

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