Twanoh State Park Campground
Open through May 31, 2026. Beginning June 1, 2026, the campground closes through spring 2027 for shoreline restoration. No camping reservations are being accepted for June 2026 onward. Park hours are 6:30 a.m. to dusk in summer.
Heat Advisory issued July 20 at 2:39PM PDT until July 22 at 11:00PM PDT by NWS Seattle WA
* WHAT...Hot conditions with high temperatures up to 96 degrees expected and low temperatures 60 to 65 degrees. This will pose a moderate to major risk of heat-related illness. * WHERE...Foothills of the Western and Southern Olympic Peninsula, Middle Chehalis River Valley, Southern Hood Canal, Foothills and Valleys of Thurston and Lewis Counties, Lowlands of Lewis and Southern Thurston Counties, and Olympia and Southern Puget Sound. * WHEN...From 10 AM Tuesday to 11 PM PDT Wednesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.
About
Twanoh State Park is a 188-acre marine camping park located on the southern bend of Hood Canal in Mason County. The park is known for having some of the warmest saltwater swimming in Washington State, thanks to Hood Canal's shallow waters and protected location. The campground offers 47 sites: 25 standard tent/RV sites and 22 full-hookup sites with water, electric, and sewer connections. A primitive Cascadia Marine Trail site is available first-come, first-served for paddlers and sailors. The park provides excellent waterfront recreation including a boat launch, 100 feet of dock, and buoy moorage. Shellfish harvesting is popular when seasons permit. Onshore activities include woodland trails, a swimming area, and picnic facilities. Two restroom buildings with flush toilets and showers serve the campground. Gathering firewood is prohibited, but campers can purchase packaged firewood from the campground host. Built in the 1930s by the Civilian Conservation Corps, Twanoh retains historic character while offering modern camping conveniences. The park's location provides easy access to Olympic National Forest and the greater Hood Canal region.
Directions
Located at 12190 E State Route 106, Union, WA 98592. From Belfair, head west on SR 106 along Hood Canal for approximately 8 miles. The park entrance is on the right.
Nearby Campgrounds
Amenities
| Water | Yes |
| Fires Allowed | Yes |
| Toilets | Yes |
| Dump Station | — |
| Wifi | — |
| Pets Allowed | Yes |
| Showers | Yes |
| Electric Hookups | Yes |
| Water Hookups | Yes |
| Sewer Hookups | Yes |
| Camp Store | — |
| Price | $12 - $51 |
Vehicle
| Max RV Length | 40ft |
| Max Trailer Length | 40ft |
| Big Rig Friendly | No |
| Pull Through Sites | No |
Contact
| Phone | +1 (360) 275-2222 |
Cell Service
| AT&T | Yes |
| Verizon | Yes |
| T-Mobile | None |
Availability
Photos
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