San Juan Island
While there isn’t a state park with mooring balls - this island has a lot to offer including two large marinas. Many attractions are available on the island as well.
We will start by breaking it down by marina, since that is likely how you will arrive on the island.
Friday Harbor Marina - East side of the Island
Roche Harbor Resort and Marina - North side of the Island
Friday Harbor Marina
Friday Harbor Marina is located on the east side of the island. It is a very busy Marina year round.