I bought a bigger anchor than the chart said. We have been sailing Vanuatu ever since and we are on anchor every night in either sand, loose coral, coral, mud or weed you name it we've anchored in it. Five cyclones, 60 knots plus on a few occasions and two tsunami's.This anchor ROCKS I trust it more than any mooring balls. My vessel is 15500 tonne and this anchor was made for my boat, the perfect match.• Craig bought an M1 85lb, S2 swivel, medium universal bridle, M2 chain hook and a dinghy anchor kit. | reviewed April 2021