A standard shore dive from vet's park last friday. Visibility was pretty good, a little particulate. Viz went from 15 to 20, to about 5 feet when we came across an aggregation of crabs, there were so many that they actually cut down the viz in a very large area at the base of the wall. Always something new at Vets. Water temp was 52 deg at 100 ft and about 63 on the surface.