Explore the waterfront in Roche Harbor with a trip to Roche Harbor Marina. While you're in the area, stroll along the seaside.
Also known as Whale Watch Park, this diving site is one of the best places in the world to view wild orca pods from the shore.
Explore the great outdoors at San Juan Island National Historic Park, a lovely green space in Friday Harbor. While you're in the area, stroll along the waterfront.