The truth about that designated anchorage in the Washington Channel is that it only fits about 3 boats with room to swing round on your
anchor. Harbor Patrol is fairly aggressive about enforcing the rather tiny boundary. But even still, it is often possible to grab one of the three spots. This is likely because there is no free dingy landing. The paid landing would be upstream a ways at the Wharf. But if you are forced to pay the Wharf, you would be better off taking a
mooring ball. One more issue for you is that you’d be at the
depth limit for the anchorage. And you may be near the length limit for the
mooring balls. So call the Wharf and get the scoop.