Comments : Like many places in Puget Sound, the Keystone breakwater is a current swept area brimming with marine life. As with many dive sites on Puget Sound, this site should be only be done at slack. Orange Spotted Nudibranchs are rather large and usually abundant here. You can see this animals gills in the middle of it's back. Nudibranchs supposedly taste bad, so do not fear becoming prey to other species.