When I visited Cypress it was by sailboat. We crossed Rosario Strait from Orcas to the Pelican Beach campground. The beach is relatively steep so we had to be careful anchoring. There are incredible hikes on the island including one to Eagle Cliffs that has the best sunset views. Eagle Cliffs is closed for parts of the year to allow Peregrine Falcons time to nest in peace. There are also ponds and wetlands scattered around the island and chances to view wildlife in quiet.

There are mooring buoys scattered around the island and other options for camping (I believe) but Pelican Beach was wonderful because it's maintained by a club of sailors that frequent the island in their unique handcrafted wooden sailboats.