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.

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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].

Frequently Asked Questions About Seaquest State Park

What is the best time of year to visit Seaquest State Park?

Seaquest State Park offers various activities and attractions for visitors year-round. The park is open for camping and hiking in summer for those looking to enjoy the outdoors. Winter brings its own set of activities, including cross-country skiing and snowshoeing.

What is the climate of Seaquest State Park?

The park's climate is moderate, with average temperatures ranging from 46 to 68 degrees Fahrenheit. Seaquest State Park experiences a fair amount of precipitation, with an average of 35 inches of rain and snowfall each year.

What kind of wildlife can be found in Seaquest State Park?

Seaquest State Park is home to various wildlife, including several species of birds, fish, and mammals. The park's forests provide a habitat for birds such as herons. Fish species in the park's waters include cutthroat trout and coho salmon.

Are there designated RV camping spots in Seaquest State Park?

Some campsites at the park can accommodate RVs up to 50 feet long. Some of these sites have full hookups while others have only partial and some standard campsites. The campground has one dump station and a playground.

Are pets allowed at Seaquest State Park?

Seaquest State Park is a pet-friendly destination, so you can bring your furry friend along on vacation. Pets should always be leashed, and owners are responsible for cleaning up after them.