Convenient Puget Sound park 30 minutes south of Seattle with 39 RV sites (no hookups), a unique scuba diving reef, and 1,445 feet of beach. Note: directly under SeaTac flight path.
Saltwater State Park squeezes big amenities into a small footprint just off I-5 near Des Moines — the closest camping to Seattle with beach access. Thirty-nine sites have no hookups but access flush restrooms with pay showers, a dump station, potable water, and a seasonal snack shack. The park features Washington's only underwater artificial reef, making it a prime scuba diving destination complete with a dedicated diver wash station. Critical note: SeaTac Airport planes fly directly overhead every 15 minutes during peak hours.
Saltwater State Park sits on a rare pocket beach on eastern Puget Sound, where a small creek estuary and rocky intertidal zone provide microhabitat in an otherwise heavily developed shoreline between Seattle and Tacoma. The park's underwater state park designation protects an artificial reef that has become a productive scuba diving site for wolf eels, lingcod, and giant Pacific octopus — with clear winter visibility making it one of the better cold-water dive sites in greater Puget Sound. Despite its urban setting, Saltwater's creek mouth provides critical juvenile salmon rearing habitat, and the park's mature alder and cottonwood grove supports year-round great blue heron and bald eagle activity within earshot of the I-5 corridor.
Sourced from first-hand visits, park ranger notes, and RV community reports. Updated when conditions change.
Sites 1–25 closest to the Puget Sound beach are the most popular and fill first. The artificial reef just offshore draws a constant flow of scuba divers — the dive wash station makes this a hub for the diving community. Sites can be noisy from the nearby highway; bring earplugs for light sleepers. Best used as a convenient base camp for exploring the greater Seattle-Tacoma area.
| 📍 Nearest Town | Des Moines, WA |
| ⛽ Gas Station | 2 mi |
| 🛒 Grocery Store | 2 mi |
| 🏪 Costco | 20 mi |
| ☕ Starbucks | 5 mi |
| 🏕️ Nearest State Park | 15 mi |
Stock up in Des Moines, WA before heading out — services get limited near the campground.
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Check availability online. Reserving 6 months in advance.