Fort Casey Historical State Park - United States

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About Fort Casey Historical State Park

RV quick facts for Fort Casey Historical State Park

DetailInformation
ReservationsReservations are required at Fort Casey campgrounds; book online or by calling (888) 226-7688.
SeasonCampground open year-round with views of Admiralty Inlet.
FeesA Discover Pass is required for vehicle entry; available at the park office.
PetsAllowed on leash; owners must pick up waste.
Ferry accessPark is adjacent to the Coupeville (Keystone) ferry terminal serving Port Townsend.
Park hoursDay-use area open dawn to dusk.
Park officeWashington State Parks regional headquarters at Fort Casey, (360) 678-4519.

Best time to visit Fort Casey Historical State Park

Late June through early September offers the warmest, driest weather and the best conditions for beach walks, kite flying on the parade ground, and exploring the gun batteries. Shoulder months in May, early June, and September bring smaller crowds and easier campsite reservations while staying mostly dry. The campground is open year-round with great views of Admiralty Inlet, so off-season RV trips are possible, though winter brings frequent rain and strong wind off the strait. Central Whidbey Island sits in a rainshadow zone where wind, rain, sun, and snow can shift quickly, and wind is a frequent visitor that can drop the wind-chill factor very low, so visitors should be prepared for all types of weather.

Jan 80 mm
45°F - 34°F

Cool, wet, and windy; campground open.

Feb 60 mm
48°F - 36°F

Off-season; expect rain and strong gusts off Admiralty Inlet.

Mar 55 mm
52°F - 37°F

Variable spring weather; pack layers and rain gear.

Apr 40 mm
57°F - 41°F

Drier shoulder season; trails and bluffs greening up.

May 35 mm
63°F - 46°F

Mild and increasingly dry; good shoulder-season RV window.

Jun 30 mm
67°F - 51°F

Long days; reservations fill quickly.

Jul 20 mm
72°F - 54°F

Peak season; book campsites well in advance.

Aug 25 mm
72°F - 54°F

Driest month; warm days and cool evenings.

Sep 35 mm
67°F - 50°F

Quieter post-summer window with mild temperatures.

Oct 65 mm
58°F - 45°F

Rain returns; shorter days and stronger winds.

Nov 90 mm
49°F - 38°F

Wet and windy; off-season camping with limited demand.

Dec 90 mm
45°F - 34°F

Cold and wet; campground open year-round.

Things to do at Fort Casey Historical State Park

  • Tour the Big Guns and gun batteries Easy
    RV parking available

    Visitors can walk through the historic concrete batteries and view the restored coastal artillery in their original emplacements. At Fort Casey, you can see mounted guns in their original emplacements and explore a network of underground bunkers and batteries, so bring a flashlight because the underground passages are dark. nps.gov/thingstodo/ebey-s-reserve-fort-casey-admiralty-head-lighthouse.htm

  • Visit Admiralty Head Lighthouse Easy
    RV parking available

    The lighthouse sits on a bluff inside the park and is open to the public as an interpretive center. It is a 30-foot tall brick and stucco building designed by Carl Leick and completed in 1903, replacing the original wood lighthouse built in 1861, and was deactivated in 1922 but is open to the public with exhibits. nps.gov/thingstodo/ebey-s-reserve-fort-casey-admiralty-head-lighthouse.htm

  • Walk the parade grounds and fly a kite Easy
    RV parking available

    The wide-open lawns above the bluff are ideal for picnicking and kite flying. There is plenty of space to picnic or to take advantage of the Whidbey winds and fly a kite on the wide-open parade grounds in front of the fort. nps.gov/thingstodo/ebey-s-reserve-fort-casey-admiralty-head-lighthouse.htm

  • Beach walk along Admiralty Inlet Easy
    RV parking available

    A long pebble and sand beach below the bluff offers tide pooling, driftwood, and views of ferry traffic and the Olympic Mountains. While in Fort Casey State Park, visitors can take a walk on the beach or hike one of the upland trails. home.nps.gov/ebla/planyourvisit/campgrounds.htm

  • Hike the upland trails Easy
    RV parking available

    A network of short trails connects the batteries, lighthouse, and bluff overlooks above Admiralty Inlet. Visitors can hike one of the upland trails connecting Fort Casey's main features. home.nps.gov/ebla/planyourvisit/campgrounds.htm

  • Day trip to historic Coupeville Easy

    The walkable waterfront town sits on Penn Cove just north of the park, with shops, museums, and restaurants known for Penn Cove mussels. nps.gov/thingstodo/ebey-s-reserve-historic-coupeville.htm

  • Explore Ebey's Landing National Historical Reserve Moderate
    RV parking available

    The park sits inside a federal reserve protecting farmland, bluffs, and historic sites including Fort Casey State Park, Ebey's Landing State Park, Fort Ebey State Park, the town of Coupeville, farmland and residential areas, and scenic coastal trails. nps.gov/ebla/

  • Ride the Coupeville-Port Townsend ferry Easy

    The Washington State Ferries terminal sits next door, offering a scenic crossing of Admiralty Inlet. Fort Casey State Park is located within Ebey's Landing National Historical Reserve, and is adjacent to the Coupeville Ferry Terminal and Keystone Spit. nps.gov/thingstodo/ebey-s-reserve-fort-casey-admiralty-head-lighthouse.htm

Top Hosts near WA, United States

Robert9 trips - Joined Jul 2020

Very friendly and accommodating host. The camper was in great shape. Thanks so much for making our trip that much better. Will definitely rent again in the future. Highly recommended 👍.

Cody R. - Sep 2021

Trey's Dutchman Kodiak Travel Trailer is an excellent get-away, with all the amenities! You can't go wrong, renting this travel trailer!

Micheal M. - Sep 2021

Ivanna3 trips - Joined Jun 2023

This was the perfect trailer! Easy for our Subaru to pull and comfortably sleeps 2 adults and 2 small children. Made camping so much easier and fun! The owners were great communicators and very helpful. We would definitely rent from them again!

Meredith R. - Aug 2024

Thanks Igor/Ivanna, the camping trip was a pure joy! Would 100% recommend you!

Xander H. - Aug 2023

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RV Rentals Fort Casey Historical State Park

Fort Casey Historical State Park, WA, United States

How to get to Fort Casey Historical State Park

From the mainland, most RV travelers reach Fort Casey by driving onto Whidbey Island over the Deception Pass Bridge from Burlington (about 90 minutes north of Seattle), then heading south on State Route 20. Fort Casey is located on State Highway 20, three miles south of Coupeville. An alternative is the Port Townsend to Coupeville (Keystone) ferry, which lands next to the park, though ferry vehicle reservations are essential and length and weight limits apply to large RVs and trailers, so confirm dimensions in advance. Whidbey Island is also accessible by the Mukilteo to Clinton ferry on the south end of the island, in addition to the Deception Pass Bridge route from the north. The closest major airport for fly-and-rent trips is Seattle-Tacoma International (SEA), roughly two and a half to three hours north by road and ferry.

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