What to do in Patos Island State Park

Patos Island State Park covers 207 acres with 20,000 feet of saltwater shoreline. Boaters will find two moorage buoys and a U.S. Coast Guard dock with a lighthouse. The lighthouse has an automated, battery operated navigation light and fog horn.

Of special interest is the wildflower bloom April through June, which you can view along a 1.5 mile loop hiking trail. A colony of prickly pear cactus has been discovered on the island.

The park has seven primitive campsites, one vault toilet and two pit toilets. There is no drinking water on the island and you must pack out your garbage.

Patos is part of the marine parks and boat moorage system. Facility use is first come, first served, with continuous moorage limited to three consecutive nights. Fees are charged year around. Current fees are $5 a night for moorage buoys. Call (360) 753-5771 for a fee update as all fees are subject to change.

Park activities include primitive camping, picnicking, saltwater fishing, hiking, clam digging and, from April through June, wildflower viewing.

Patos Island State Park is located north west of San Juan Island in Georgia Strait. It is accessible only by boat at 5 miles NNW of Orcas Island and 2.5 miles NW of Sucia Island in San Juan County.

Washington's climate varies with each region. Patos Island State Park is located in an area "protected" by surrounding ocean waters and mountain ranges. Temperatures are consistently moderate, rarely topping 80 degrees in the summer and rarely falling below 30 degrees in the winter.

Annual rainfall averages 29 inches, approximately half that of Seattle. In the summer months, and especially during September and early October, the islands may go for weeks without a cloud in the sky. Snowfalls occur once or twice a year and usually total only one or two inches. Northeast winds may cause temperature extremes.

Island tides range over 14 feet. The extreme low tide of 4.0 feet to the extreme high tide of over 10 feet.

c/o San Juan Marine Area
226 Roehls Hill Rd.
Olga, WA 98279

Phone: 360-376-2073

  • Patos Island State Park Travel Q&A