Seaquest State Park RV & Campground Guide


The Seaquest State Park is located a few minutes off of Interstate 5 about halfway between Tacoma, WA, and Portland, OR. The closest city is Castle Rock, WA, which is six miles to the west. While July and August typically see little to no rain, the region sees an average annual rainfall of about 54 inches, with December and January being the wettest months. This state park sits on Silver Lake, which was formed when an early eruption of Mt. Saint Helens created a natural dam on the Silver Creek. The park includes wetlands and forested areas, so there's plenty of wildlife to view. Some spots on the hiking trails offer spectacular views of Mt. Saint Helens.

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Spring 45-67 F
Summer 52-77 F
Fall 39-53 F
Winter 36-51 F
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RV Resorts & Campsites in Seaquest State Park

National and state parks cover huge swaths of land in both Washington and Oregon, giving visitors plenty of recreational opportunities. A great way to explore the area is in an RV. If you don't have one, don't worry. RVshare makes it easy to rent an RV so you can create your own adventure. 

Seaquest State Park Campground

The Seaquest State Park Campground is a great option when you want to stay close to nature. It has 18 partial hook-up sites and 15 with full hook-ups. You'll find a ton of amenities that will make the park feel like home, and there's nothing like staying on-site to eliminate travel time at the end and beginning of each day. Partial hookup sites start at $30 during winter and $35 during peak season. Full hook-up sites start at $35 in winter and $40 during peak season. Amenities include:

  • Dump station

  • Partial and full hookup sites

  • ADA restrooms and showers

  • 2 children’s play areas

  • Horseshoe pits and volleyball courts

  • Visitors Center and amphitheater

Mt. Saint Helens RV park

If you're looking for a campground with plenty of amenities, check out Mt. Saint Helens RV park. This KOA campground offers full and partial hookup spots with 50-amp power. The campground's pull-through sites allow a maximum length of 60 feet. Wi-Fi is available, and pets are welcome with an additional fee. Rates start at $18 per night for spots with no hookups. Amenities include:

  • Beauty salon

  • Bounce-house with an obstacle course

  • Dog run

  • On-site photographer

  • Horseshoe pit

  • Playground

  • Clubhouse with pool table, driving games, foosball, and a play kitchen and toys

Silver Cove RV Resort

RV spots at Silver Cove RV Resort have full hookups, including cable TV. This pet-friendly campground offers easy access to Silver Lake with an on-site boat ramp. You can rent a boat or kayak, and fishing can be done from the shore or a boat. The campground's general store offers many necessities as well as souvenirs. Other amenities include:

  • Laundry

  • Barbecue pit and picnic tables

  • Horseshoe pits

  • On-site propane and firewood

  • Showers

  • Playground

RV Rentals Near Seaquest State Park

Nearby RV Rentals


What to Do at
Seaquest State Park

Inside Seaquest State Park

With seven miles of hiking trails, this 505-acre state park provides a wealth of recreational and educational activities. Silver Lake offers seasonal fishing as well as boating, kayaking, and swimming. The Mount St. Helens Visitor Center is located within the park. There, you can participate in a variety of programs, each often about 15 to 20 minutes long, exploring topics such as the 1980s eruption, local Native American culture, and the history of the area. The park has two playgrounds, a volleyball court, six horseshoe pits, and an amphitheater.

Outside Seaquest State Park

The region around Seaquest State Park sees a wide range of festivals and other events throughout the year. In the nearby towns of Castle Rock, Silver Lake, and Toutle, you'll find restaurants to suit every palate as well as activities for all ages. The surrounding forests offer bountiful recreational activities for those who love the outdoors.


Parkers Restaurant & Brewery

Parkers Restaurant & Brewery serves brunch, lunch, and dinner. Steaks and burgers are the mainstays of their menu, but you'll also find salads and breakfast items like French toast and pancakes. For lunch and dinner, be sure to leave room for dessert. They offer several varieties of cheesecake as well as seasonal cobblers and other delights. Adults can enjoy offerings from the full bar.

Type: American

Location: 1300 Mt Saint Helens Wy NE Exit 49, Castle Rock, WA

Papa Pete's Pizza

This cozy pizza parlor has been serving southwestern Washington since 1974. The dough and sauce are made daily from scratch. In addition to the traditional pizza toppings, you can get a Papa Pete's Pizza with shrimp or oysters. Chicken salad and shrimp salad are also featured on the menu along with chicken nuggets.

Type: Pizza, Italian

Location: 1163 Mt Saint Helens Wy NE, Castle Rock, WA

Peper's 49er

Serving breakfast, lunch, and dinner all day, Peper's 49er has dinner entrees from both land and sea. In addition to burgers and sandwiches, selections include liver and onions, breaded veal, ham steak, cod steak, and grilled oysters. Beer and wine are available.

Type: American, Diner

Location: 916 Walsh Ave NE, Castle Rock, WA

El Compadre Restaurant

Favorites at El Compadre Restaurant include pork rinds in green sauce, taquitos, and chicken salad in addition to tacos, enchiladas, and burritos. Vegetarian meals are available. As with most Mexican restaurants, adults can indulge in margaritas.

Type: Mexican

Location: 1289 Mt Saint Helens Wy NE, Castle Rock, WA


Three Rivers Mall & Regal RPX

This shopping mall is about an 18-minute drive from Seaquest State Park. In addition to lots of shopping, the Three Rivers Mall offers restaurants and an arcade. The attached Regal movie theater has multiple screens and the latest in movie-going technology such as 4DX, IMAX, RPX, and ScreenX

Location: 351 Three Rivers Dr, Kelso, WA

Artifacts: A Tinker's Marketplace

Artifacts: A Tinkers Market Place peddles antiques, unique items, and gifts. You can find art for any budget or visit the wine bar in the back.

Location: 231 S 1st St, Saint Helens, OR


Johnston Ridge Observatory

Visit the observatory to get a first-hand look at the regenerative power of nature since the 1980s eruption of Mt. Saint Helens. Recreational activities at the Johnston Ridge Observatory include bicycling, hiking, climbing, boating, fishing, swimming, and horseback riding.

Location: State Route 504, Castle Rock, WA

Lewis and Clark State Park

History buffs will appreciate the structures at Lewis and Clark State Park, which were built in the 1930s by the Civilian Conservation Corps. This 616-acre park is home to a rare old-growth forest and is situated along the historic north spur of the Oregon Trail. A half-mile, self-guided interpretive tour winds through the old-growth trees. You can also enjoy 5 miles of hiking trails and 8 miles of equestrian trails.

Location: 4583 Jackson Highway, Toledo, WA

The Forest Learning Center at Mount St. Helens

The Forest Learning Center at Mount St. Helens is located within the blast zone of the 1980 eruption. You can learn about the devastation that eruption caused and how groups and individuals worked to bring the area back to life. At the center, you can walk through a life-like forest as well as get spectacular, close-up views of the still-active volcano.

Location: 17000 Spirit Lake Highway, Highway 504 milepost 33 -Spirit Lake Hwy, Toutle, WA

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How to Get to
Seaquest State Park

From the Portland, Oregon, area, take Interstate 5 to exit 49 toward Castle Rock/Toutle. Turn right onto WA-504 E/Mt St Helens Way NE and travel about 5 miles. The entrance to Seaquest State Park will be on the right. From the Seattle area, take I-5 to exit 49 toward Huntington Ave N in Cowlitz County. Then follow WA-504 E/Mt St Helens Way NE about 5 miles until you reach the entrance on the right.

Entering Seaquest State Park

Hours at Seaquest State Park are from 8 a.m. until dusk all year. Some campsites do close during winter. You must purchase a Discover Pass prior to your visit as there is not an automated pay station on site.

Seaquest State Park One-day Pass : $10.0

per vehicle

With so much to explore in the Pacific Northwest, the best way to see it all is in an RV. You can easily find a rental RV through RVshare. Be sure to take lots of pics and tag us in your social media posts. We'd also love for you to share your memories and photos with us at [email protected]