Callers/Crumstone. The Callers is a reef off the Crumstone which should be dived on low water slack only. Lots of life to be found around this site with anemones, lobsters, crabs, dead man’s fingers etc and usually seals as well. There is the remains of the wreck Britannia here with the bows in 28m and other debris including boilers and prop in along the reef in about 12m.