Obstruction Pass State Park is a 76-acre public recreation area at the southern end of Orcas Island in Washington, about a mile southeast of Olga, beside Obstruction Pass in the San Juan Islands. This small coastal park is geared to day use and simple camping rather than large facilities, offering quiet shoreline access and low-key outdoor recreation. Visitors use the park for picnicking, fishing, crabbing, beachcombing, and bird watching, and a short 0.6-mile trail runs through it. Its nine-site campground includes one site for kayakers on the Cascadia Marine Trail, underscoring its role in small-watercraft travel through the islands.