Once you know it, it’s just so obvious... The San Juan Islands are the tops of mountains of a receding continent much older than the American mainland. Worn down by glaciers, the sedimentary rock exposed on the San Juan Islands is from the Paleozoic era, about 540 to 250 million years old. The archipelago also has one of the most diverse ecosystems in the world. The result: breathtaking vistas, stunning nature and amazing wildlife watching. There’s no better way to experience that than during a nice, long walk.
Here is a list of the 5 Most Awe-Inspiring Hikes on San Juan Island.