What an Anchor Does
An anchor helps keep a boat in a chosen position by connecting it to the seabed. When lowered, it settles into sand, mud, or another suitable surface. The boat’s rode—the chain, rope, or combination of both—transfers the vessel’s pull to the anchor. A well-set anchor resists that pull rather than simply resting on the bottom.
Anchoring is useful when stopping for a swim, waiting out a delay, or staying overnight in a sheltered area. It can also provide a backup if a boat loses power, provided conditions and location make anchoring safe.
Choosing the Right Type
Anchor designs are made for different seabeds and boats. Fluke anchors are relatively light and can hold well in sand or mud when properly set. Plow-style anchors are shaped to dig in and are commonly used for varied conditions. Claw-style designs can reset more easily if wind or current shifts, though performance depends on the bottom. No single model works equally well everywhere.
Size matters, too. A boat’s length and weight, expected weather, and the type of rode all help determine an appropriate anchor. Manufacturers’ recommendations offer a useful starting point, but local boating advice can help account for regional seabeds.
Setting an Anchor Safely
Before anchoring, check the forecast, water depth, tide, and nearby traffic. Choose enough room to swing as wind or current changes, while keeping clear of shorelines, channels, rocks, and other boats. Lower the anchor steadily rather than throwing it, then let out sufficient rode as the boat moves back. A suitable scope—the ratio of rode length to water depth—helps the anchor hold.
Once the rode is snug, check that the boat remains in place using landmarks or navigation equipment. Recheck periodically, especially if conditions change. If the anchor drags, raise it and try again in a safer location. When departing, bring the boat gently toward the anchor before lifting it, and never pull an anchor free with the engine under heavy strain.