How to Choose an Anchorage: Five Checks Before You Commit

Will the anchorage remain sheltered?

Judge shelter for the entire intended stay, not only the conditions at arrival. Compare the forecast wind direction and strength with the shape and height of the surrounding land, the fetch across the water and any swell that can enter from another direction.

Wind can bend around headlands or accelerate through valleys. A bay that is calm in an offshore breeze may become uncomfortable after a forecast shift. Check the timing of fronts, local effects and tidal changes, then decide what observation would make you leave early.

Shelter from waves is only one part of safety. An offshore wind can create smooth water close to shore while making a failed engine, dragging anchor or dinghy trip more consequential.

Is there enough water at every stage of tide?

Calculate depth for the lowest expected water during the stay and include a suitable under-keel margin. Use the vessel's actual draught, current tidal information, charted depths and any uncertainty in the prediction or position.

Then consider the other end of the tidal range. More water increases the radius through which the vessel and its cable can move. An anchorage that has enough room on arrival may become crowded or bring the boat closer to shore, moorings or hazards as the height and stream change.

Drying height, pressure, wind-driven water level and local anomalies may matter. Do not copy a previous boat's position without checking that its draught, cable and intended duration resemble yours.

Is there room to swing without conflict?

Plot or estimate the complete swinging area, allowing for the cable paid out, vessel length, changes in wind and stream and the different way nearby boats may lie. Yachts, motor boats and vessels on moorings do not always swing together.

Keep clear of fairways, harbour approaches, prohibited areas, charted cables, underwater obstructions and places where the boat could settle into danger if the anchor drags. Leave enough room to recover the anchor and manoeuvre away rather than planning only for a stationary circle.

At a busy anchorage, the available space is an observation made on arrival. A chart can suggest a destination but cannot show the current fleet or every local restriction.

Will the anchor hold without avoidable damage?

Use charted seabed information, local guidance and the anchor appropriate to the vessel. Sand or mud may offer useful holding for suitable equipment, while weed, rock and mixed ground can behave differently. Confirm the method and amount of cable from the vessel's operating guidance and the conditions rather than relying on one universal ratio.

Avoid sensitive habitats where possible. RYA environmental guidance recommends researching protected seabed areas and targeting suitable bare ground away from seagrass, while considering the area swept by the chain as the boat pivots.

After setting, use transits, position information, depth and alarms as appropriate to establish that the anchor is holding. Continue the watch; a successful set does not guarantee that later wind, tide or another vessel will leave the situation unchanged.

What is the escape plan?

Before settling, identify the route out, the depth and hazards along it, and whether it remains usable after a wind shift or tidal change. Prepare an alternative anchorage, harbour or sea-room option that fits the same forecast period.

Agree who will start the engine, handle the cable, steer and communicate if the boat must leave quickly. At night, preserve the information needed to identify the exit and nearby vessels without destroying night vision.

The best anchorage is not merely the prettiest or closest. It is the place where shelter, depth, room, holding and departure options leave enough margin for the actual boat and crew.