San Juan Island National Historical Park [1]: Explore the American and British Camps of this two-site park that is preserved in remembrance of an international standoff started over a pig.
Roche Harbor [2]: Situated on the north side of the San Juan Island, this is a classic little seaport resort community with historic roots.
Lime Kiln Point State Park [3]: Also known as Whale Watch Park, this is the best land-based spot on all of the islands to spot orcas.
Moran State Park [4]: The main attraction on Orcas Island, this massive park offers the best camping in the Puget Sound, pristine freshwater lakes, a tumbling waterfall, and the highest peak in all of the islands.
Obstruction Pass State Park [5]: Hidden away on Orcas Island, this remote little park offers a short hike down to a solitary beach filled with skipping stones and driftwood.
Lopez Island Country Sights [6]: Cycle the rural roads of Lopez and stop off to pick berries, watch cows munch the fields, and sip on organic wine.
Links:
[1] http://www.moon.com/destinations/washington/san-juan-islands/san-juan-island/sights/san-juan-island-national-historical-park
[2] http://www.moon.com/destinations/washington/san-juan-islands/san-juan-island/sights/roche-harbor
[3] http://www.moon.com/destinations/washington/san-juan-islands/san-juan-island/sights/lime-kiln-point-state-park
[4] http://www.moon.com/destinations/washington/san-juan-islands/orcas-island/sights/moran-state-park
[5] http://www.moon.com/destinations/washington/san-juan-islands/orcas-island/sights/obstruction-pass-state-park
[6] http://www.moon.com/destinations/washington/san-juan-islands/lopez-island/sights/country-sights