Seaquest State Park has a dump station. Washington State Parks charges $5 per use, with a Discover Pass; campers who paid for camping in this park do not pay the dump fee.
Directions open an external map. They do not confirm that roads or entrances suit your RV.
Know before you arrive.
- Who can use it
- Non-guests welcomeWashington State Parks charges a trailer dump fee of $5 per use, with a Discover Pass. People who already paid for camping in that park do not pay it.
- Dump-station fee
- $5Non-guest dump fee. Discover Pass required.Non-guests$5. Discover Pass required.Registered guestsNo dump fee for this group. People who already paid for camping in this park.
- Service hours
- Dump-station hours are not published in the checked source.Park hours8:00 a.m. - Dusk year round. These are not confirmed dump-station hours.
- Season & restrictions
- No separate dump-station season is published in the checked source.
- Location
- 3030 Spirit Lake Highway, Castle Rock, WA 98611Map point marks the middle of the larger property, not the dump-station entrance.
- Drinking-water fill
- Not confirmed in the checked source.
- Rinse water
- Not confirmed in the checked source.
Where the information comes from.
Official information checked October 1, 2026. This is a source check, not an on-site inspection or a live-status guarantee. Operator: Washington State Parks and Recreation Commission.
View evidence from Washington State Parks and Recreation Commission and 1 other source
Seaquest State Park | Washington State Parks
“The park has 52 standard campsites, 18 partial hookup sites, 15 full hookups sites, three hiker/biker sites, one dump station, five restrooms (one ADA), and no ADA showers.”
“8:00 a.m. - Dusk year round”
Fees | Washington State Parks
“Trailer dump fee $5 per use, with a Discover Pass . You don't have to pay this if you have already paid for camping in the park you staying in.”