We're updating our camping and moorage fees to continue providing great experiences for visitors amid inflation and rising costs. You will see a rate increase for camping stays booked for May 15 and beyond. Moorage fees will increase Jan. 1. Learn more here.
Fires allowed in all designated fire pits and grills. Propane and gas grills allowed.
The Mount Saint Helens Visitor Center will be temporarily closed from Sept. 30, 2024 to mid-May 2025 for a complete update of its exhibits. The Wetland Haven Trail on Silver Lake and the parking lot will remain open. Please call (360) 274-0962 or email silver.lake@parks.wa.gov for updates on interpretive programming outdoors this winter and spring.
3030 Spirit Lake Highway, Castle Rock, WA 98611
Seaquest is a 475-acre, year-round camping park set among lush pines in the shadow of the storied Mount. St. Helen's volcano. Seaquest Park boasts forested campgrounds, great hiking trails and stunning mountain panoramas. Next door to the campground is Silver Lake. The park is connected to the popular Mount St. Helen's Interpretive Center, another worthwhile destination, and Silver Lake by a pedestrian tunnel which leads you to a boardwalk trail over the wetland where ducks and other wildlife thrive.
Biking
Camping
First Day Hike Events
Hiking, Walking, Rolling and Running
Interpretive and Visitor Centers
Kayaking
Winter Camping
Accessible Campsites
Accessible Restrooms
Drinking Water
Double campsites
Fire Pit
Firewood
Park Ranger Station
Recycling
Restrooms
Showers
Trash Service
Wi-Fi
Kitchen Shelter
Picnic Shelters
Picnic Tables
Accessible Parking
Parking
Trailer Dump
Horseshoe Pits
Playgrounds
Volleyball
Amphitheater
Boardwalk
Interpretive Opportunities
Accessible Trails
Hiking Trails
Forest
Freshwater
Lake
Mountain View
Seasonal Wildflowers
Wetland
Wildlife Viewing
Seaquest is connected to the Mount St. Helens Interpretive Center by a short pedestrian tunnel. The Interpretive Center features a fun, interactive educational experience focusing on the May 1980 eruption of Mount St. Helens and subsequent regrowth. It also offers visitors a sweeping view of Mount St. Helen's National Volcanic Monument, 47 miles east of the park in the Gifford Pinchot National Forest.
Seaquest features more than 12 miles of hiking trails. A boardwalk trail beside the Interpretive Center connects visitors with wetland shoreline for an unobstructed view the volcano and surrounding woods.
Silver Lake at Seaquest is a shallow wetland lake that is home to many species of birds and wildlife.
The park has 52 standard campsites, 18 partial hookup sites, 15 full hookups sites, three hiker/biker sites, one dump station, five restrooms (four ADA), and six ADA showers. Maximum site length is 50 feet (may have limited availability). The north, south, and mid-camp loops are in forest settings. Full hookup sites are available in the T-loop only. We suggest making reservations in the summer.
Learn about seasonal closers and operational changes during the off-season on the Winter Schedule page.
Located in the day-use area is a picnic shelter that can accommodate large groups. Reserve the shelter on the reservation site, under Day Use.
The group camp for up to 25 visitors offers a covered shelter for tables, a tent area, a fire pit, two braziers, and hose bib. The camp is reservable May 15 - Sept. 15. The remainder of the year, the group camp is available on a first-come, first-served basis. To make a reservation call (888) 226-7688
The park has five yurts located in a wooded area of the park. Each yurt features sleeping accommodations for up to five visitors, a small end table, a 20 amp electrical outlet and heater. Outside is a picnic table and fire pit with grate. All yurts are heated, but visitors should take along blankets and warm clothing as evenings can be cool. Tents are not allowed on the yurt site, but awnings are okay. For more information, visit the cabins/yurts page.
A public access watercraft launch operated by the Department of Fish and Wildlife is located five miles east of the park on State Route 504.
Seaquest Yurts
