I knew I had read about this somewhere...this is straight out of the Washington-Oregon Game & Fish mag.
Cypress Island is the wildest of the San Juans, reminiscent of islands in southeast Alaska. Cypress contains mostly undeveloped forest owned by the DNR. There is no ferry service, but this is an awesome back-up hunt if you have a boat able to make the trip from Anacortes.
A dozen or so DNR mooring buoys are located in Eagle Harbor, on the east shore of the island. A circuit of trails provides access to some deep woods. During daylight hours, it's best to hunt the timbered areas. The deer tend to be on the small side, but each year, some real stocky bucks with surprising racks are taken. Salal, sword fern, and oceanspray provide deep cover for the blacktails, whose travel patterns seem to be on a tight radius. Once you find tracks, rubs and scrapes, hunt the surrounding area. These island deer are homebodies.