The sandy seafloor surrounding Lundy is home to numerous highly adapted and bizarre-looking creatures. Many spend their entire adult lives on, or more often in, the sand.
One square metre of sand has been found to contain as many as 2,500 creatures (of 80 different species).
Sea potatoes (actually sea urchins,) razor shell, flat fish, sand stars (cannibalistic starfish) and swimming crabs live here but can be very difficult to spot.
At depth, many of the animals that live in sand are extremely well camouflaged and are easily overlooked by divers, but a few minutes spent watching for these curious inhabitants can be surprisingly rewarding.