- Twanoh State Park covers 182 acres with 3,000 feet of saltwater shoreline. Boating amenities include a boat dock, seven mooring buoys, a boat pump out facility and two boat launch ramps.
Recreational amenities include 580 feet of swimming beach, a "kiddies" wading pool, two bathhouses, a day use area with 111 picnic sites, five day-use kitchens, a concession building, parking for 525 cars, and four comfort stations. It is of interest that the park buildings that were constructed by the CCCs in the early 1930s are still preserved in their natural beauty.
Camping facilities include a camp area with nine trailer sites, 38 tent sites, and a group camp with 15 walk-in sites.
The park is part of the Marine Parks and Boat Moorage system. Though fees are not currently charged, call (360) 753-5771 for a fee update as all fees are subject to change.
Recreation - Picnicking, swimming, hiking, oyster harvesting, boating, water skiing, fishing, camping and smelting are some of the activities enjoyed in the park.
Climate - The climate in this area is influenced by both the Olympic Mountains and the bodies of water that surround the Olympic Peninsula. It is generally a marine climate, mild and temperate, with the Pacific Ocean moderating temperatures throughout the year.
Winters are cool and cloudy with rain and some snow. Maximum winter temperatures are in the mid- to high 40s with minimum temperatures in the mid 30s. Summers are warm and relatively dry with maximum and minimum temperatures in the mid 70s and low 50s, respectively. This area averages 51 inches of precipitation per year.
Twanoh State Park is located eight miles west of Belfair on the south side of lower Hood Canal, on State Highway 106 in Mason County.