The Cascadia Marine Trail is a

water trail Water (chemical formula ) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a s ...

Puget Sound Puget Sound ( ) is a sound of the Pacific Northwest, an inlet of the Pacific Ocean, and part of the Salish Sea. It is located along the northwestern coast of the U.S. state of Washington. It is a complex estuarine system of interconnected ma ...

. Created in 1993, it is designated as one of the 16 National Millennium Trails and suitable for day or multi-day trips. It has over 50 campsites to visit."Cascadia Marine Trail"
Washington Water Trails Assoc. People can boat to the campsites from many public and private launch sites or shoreline trailheads. In 1994, it was designated a National Recreation Trail.

References

Water trails Puget Sound National Recreation Trails in Washington (state) {{IslandCountyWA-geo-stub