Patos Island Marine State Park

San Juan County, Washington
Established 1959
207 acres

Patos Island Marine State Park is a remote, boat-access-only park at the northern edge of the San Juan Islands. Known for its historic lighthouse, rocky shoreline, and quiet campsites, it offers a rugged island experience with excellent wildlife viewing, kayaking, and saltwater scenery.

Entrance Fee

Free

Visiting with Dogs

Dogs allowed on leash; keep pets under control and clean up waste. Check seasonal or area-specific restrictions before visiting.

Visitor Tips & Reviews

What Visitors Say

Remote, peaceful island park loved for stunning water views, wildlife, kayaking, hiking, and quiet camping. Visitors praise the lighthouse, sunsets, and true off-the-grid adventure.

Tips from Visitors

  • Bring your own water and supplies; services are very limited.
  • Arrive by boat only; check tides and weather before traveling.
  • Pack out all trash to protect the island's fragile environment.
  • Use caution on rocky shorelines and uneven trails.
  • Respect wildlife and keep a safe distance from nesting birds.

Best Time to Visit

The best time to visit Patos Island Marine State Park is late spring through early fall, when calmer seas make boat travel easier and camping is most comfortable. Summer also offers the best chance for wildlife viewing, long daylight hours, and clear views across the islands.

Amenities

Boat AccessPrimitive CampsitesPicnic AreasRestroomsLighthouseBeach AccessWildlife Viewing

Nearby Attractions

Explore these attractions near Patos Island Marine State Park:

  • Matia Island Marine State Park
    A nearby boat-access-only park known for its old-growth forest, quiet campsites, and protected shoreline.
    5 miles away
  • Sucia Island Marine State Park
    A popular marine park with dramatic sandstone formations, coves, and some of the best boating and camping in the San Juans.
    12 miles away
  • Lime Kiln Point State Park
    A well-known whale-watching destination on San Juan Island with views of Haro Strait and frequent orca sightings.
    16 miles away

Things to Do at Patos Island Marine State Park

BoatingKayakingCampingBirdwatchingFishing

Camping at Patos Island Marine State Park

Primitive camping only; no RVs, cabins, or hookups. Boat-in access, limited sites, seasonal use, no reservations.

Hiking Trails

Patos Island Marine State Park offers a short, scenic day hike with rugged coastal views, quiet forested paths, and plenty of shoreline exploration. Visitors often enjoy the peaceful, remote feel, wildlife sightings, and sweeping vistas of the San Juan Islands. Trails are generally easy to moderate, but conditions can be uneven and muddy, so sturdy shoes are recommended.

Patos Island Loop Trail

Easy

A scenic loop around the island’s main developed area, with shoreline views, forested sections, and access to the historic lighthouse area.

1 mi
30-45 minutes
100 ft gain
Easy difficulty

Lighthouse Trail

Easy

Short walk to the Patos Island Lighthouse and nearby viewpoints, ideal for a quick outing with sweeping water and island scenery.

3,168 ft
20-30 minutes
50 ft gain
Easy difficulty

North Shore Trail

Easy

A gentle trail along the north side of the island offering quiet forest, rocky shoreline, and chances to spot marine wildlife.

1.2 mi
45-60 minutes
120 ft gain
Easy difficulty

South Shore Trail

Easy

A relaxed shoreline route with views across the islands and a mix of beach access, driftwood, and coastal forest.

1.1 mi
40-55 minutes
110 ft gain
Easy difficulty

Directions

Access by private boat or kayak only. From Anacortes, travel north by water through the San Juan Islands to Patos Island, near the Canadian border. There is no ferry service or road access to the park.

Frequently Asked Questions

How do I get to Patos Island Marine State Park?

Patos Island is only accessible by boat, kayak, or floatplane. Most visitors arrive by private boat or water taxi from the San Juan Islands. There is no ferry service or road access.

Are there campsites on Patos Island?

Yes. The park has primitive campsites, but they are first-come, first-served and can be limited. Visitors often recommend arriving early, especially in summer, and bringing all needed supplies.

Is there drinking water on the island?

No reliable potable water is available on Patos Island. Visitors should bring enough water for their entire stay, as reviews often mention this as an important planning item.

What is the lighthouse like?

The Patos Island Lighthouse is a major highlight and a favorite photo spot. Visitors often describe the setting as scenic and peaceful, with great views of the surrounding water and islands.

Can I hike or explore the island?

Yes. There are short trails and shoreline areas to explore. Many visitors enjoy the quiet, natural feel of the island, but terrain can be uneven, so sturdy shoes are recommended.

What should I know before visiting?

Plan ahead and pack everything you need, including food, water, and weather-appropriate gear. Reviews often note that conditions can change quickly, and cell service may be limited or unavailable.

Location
camping and backpacking gear

Don’t Forget the Essentials

Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.

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