4.7
(3)
65
hikers
18
hikes
Family friendly hiking trails in Mystery Bay State Park are primarily found within the adjacent Fort Flagler State Park, offering a blend of coastal exploration and natural beauty on Marrowstone Island. The region features saltwater shorelines, views of the Olympic Mountains, and extensive coastal forests. Trails often navigate through these woodlands and past historic military sites, providing varied terrain for hikers.
Last updated: April 28, 2026
3
hikers
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
4
hikers
7.81km
02:06
100m
100m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

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3
hikers
6.71km
01:48
80m
80m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
1
hikers
3.63km
01:00
60m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
210km
55:02
1,710m
1,710m
Hard hike. Very good fitness required. Easily-accessible paths. Suitable for all skill levels.
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The western stretch of the Olympic Discovery Trail crosses over and follows the Sol Duc River (Quileute for sparkling waters) for many miles. Rising in the Olympic Mountains and flowing west for 78 miles, the Sol Duc joins the Bogachiel River and forms the Quillayute River which carries the water a final 4 miles to the Pacific.
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The western stretch of the Olympic Discovery Trail crosses over and follows the Sol Duc River (Quileute for sparkling waters) for many miles. Rising in the Olympic Mountains and flowing west for 78 miles, the Sol Duc joins the Bogachiel River and forms the Quillayute River which carries the water a final 4 miles to the Pacific.
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La Push is a charming coastal town perched on the edge of the Olympic Peninsula. The city is the proud home of the Quileute tribe. It's renowned for its whale-watching opportunities and the unspoiled beauty of its natural environment, including the famous Rialto Beach.
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Fort Townsend Historical State Park is a forested park that also features Washington's wartime history. Here you can check the Torpedo X-Ray Tower, once used by the U.S. Navy to disarm torpedoes during World War II. You can also enjoy scenic views, walking trails, and a picnic area surrounded by nature. It’s a great place for history buffs and outdoor enthusiasts alike.
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Fort Flagler State Park is a 1,451-acre park surrounded by saltwater shoreline. The park offers hiking and biking trails, campsites, boat launches, and historical buildings available for overnight stays. You can visit the park's museum, which features exhibits about the fort's history. The park provides unparalleled views of the Olympic and Cascade mountains and Puget Sound.
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Sequim Bay State Park offers a year-round respite for the weary. Along with a beautiful stretch of coastline the park also has a number of hiker-biker campsites designated for those that walk or ride in.
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Uncover military history at Fort Flagler Historical State Park on Marrowstone Island's northern tip. This coastal defense fort, more than a century old, is part of the Puget Sound's defensive network, along with Fort Worden and Fort Casey. It's a must-visit for those keen on military, armament, and maritime history. Built in the late 1890s, it served during several wars and now houses a military museum in the old Quarter Master's Store House.
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Sequim Bay lies along the Strait of Juan de Fuca, which forms the border between the USA & Canada. The Wildlife Area was established here restore a natural estuary and floodplain.
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There are over 15 family-friendly hiking routes available in Mystery Bay State Park and the nearby Fort Flagler State Park. These trails range from easy strolls along the shoreline to slightly more moderate loops through coastal forests, offering diverse experiences for families.
Families can expect a mix of terrain. Mystery Bay State Park itself offers easy walks along its 685 feet of saltwater shoreline and rocky beaches. For more extensive hiking, the adjacent Fort Flagler State Park features trails that wind through coastal woodlands, past historic military sites, and offer scenic views of the Olympic Mountains and Admiralty Inlet. Many paths are well-maintained and suitable for various ages.
Yes, there are several excellent circular routes that are great for families. For example, the Fort Flagler State Park – Fort Flagler State Park loop is an easy 6.5 km hike. Another option is the Fort Flagler State Park loop from Marrowstone Wildlife Area, which is also an easy 6.7 km route, perfect for a family outing.
While Mystery Bay State Park offers beautiful saltwater shoreline views, the nearby Fort Flagler State Park is rich in historical significance. Families can explore historic military batteries and structures, remnants of the coastal defense system. The trails often lead through coastal forests, offering glimpses of the diverse marine environment and stunning vistas of the Olympic Mountains and Admiralty Inlet.
Generally, dogs are welcome on trails in Washington State Parks, including Mystery Bay and Fort Flagler, but they must be kept on a leash. Always remember to pack out any waste. It's a good idea to check the specific park regulations before your visit for any updates or restricted areas. For more details, you can visit the official Mystery Bay State Park website.
The spring, summer, and early fall months generally offer the most pleasant weather for family hiking in Mystery Bay State Park and the surrounding area. During these seasons, you can enjoy milder temperatures, less rain, and longer daylight hours, making it ideal for exploring the shoreline and the trails of Fort Flagler State Park. Summer is particularly popular for beach activities and picnicking.
For a family hike, it's always wise to bring plenty of water, snacks, and appropriate layers of clothing as coastal weather can change. Sunscreen and hats are recommended, especially for beach walks. Don't forget binoculars for birdwatching and marine life spotting, and a camera to capture the scenic views. Comfortable walking shoes are a must for all family members.
Yes, both Mystery Bay State Park and Fort Flagler State Park offer parking facilities. Mystery Bay has parking available for day-use visitors. At Fort Flagler, there are multiple parking areas near various trailheads, making it convenient to access the extensive trail network. A Discover Pass is typically required for vehicle access to Washington State Parks.
The area is a haven for marine life and birds. Along the shoreline, families might spot various seabirds, eagles, and possibly seals or other marine mammals in the bay. The coastal forests are home to smaller mammals and a variety of bird species. Shellfish harvesting (clams, crabs) is also popular during regulated seasons, offering a chance to observe the rich marine ecosystem.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the quiet, scenic beauty of the coastal trails, the historical points of interest at Fort Flagler, and the stunning views of the Olympic Mountains. Many families appreciate the variety of easy to moderate paths that cater to different ages and abilities, making it a perfect destination for a family outdoor adventure.
Yes, for families looking for a bit more challenge, the Anti-Aircraft Battery Trail, Bluff Trail, and Lagoon Loop is a moderate 7.8 km route. This trail offers a longer exploration through the diverse landscapes of the area, combining coastal bluffs with forest paths and historical sites, providing a rewarding experience for active families.
While Mystery Bay State Park itself is more focused on natural recreation, the nearby communities on Marrowstone Island and in Nordland, WA, offer a few local options for dining and refreshments. You can find charming cafes or small eateries where you can relax and refuel after your family hike, often with a local, community feel.


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