- Lake Sylvia State Park covers nearly 950 acres with 15,840 feet of saltwater shoreline on Willapa Bay and the Pacific Ocean. The park is joined on the north by the 1,433 acre Willapa National Wildlife Refuge and offers two vault toilets, a parking area, primitive boat-launch ramps, a 2.4 mile trail, and two storage outbuildings.
Recreation - Activities at the park include hiking, wildlife study, beach combing, surf fishing, driftwood collecting, and clamming.
Climate - Washington's climate varies with each region. The Cascades split the state and alter weather patterns. Western Washington is temperate, due to the coastal geography. The water is a stabilizing force for the climate, making extreme temperatures rare. The area receives large amounts of rainfall from Pacific storms and some snow during winter months.
Lake Sylvia State Park, in south coastal Washington, is located seventeen miles north of the town of Long Beach, and approximately four miles north of the town of Oysterville, on the Long Beach Peninsula in Pacific County.