Top 12 Caves in Washington
Caves in Washington State offer diverse geological formations and exploration opportunities. The region features a variety of cave types, including extensive lava tubes, limestone caverns, and marble-formed systems. These natural features are found across different landscapes, from the volcanic areas near Mount St. Helens to the eastern parts of the state. Visitors can explore these underground environments, which showcase unique geological processes and provide distinct caving experiences.
Best caves in Washington
- The most popular caves is Talus Rocks, a…
Last updated: April 29, 2026
Talus Rocks
Highlight • Natural Monument
Tip by
Big Four Ice Caves
Highlight • Cave
Tip by
Sign up now to discover places like this
Get recommendations on the best single tracks, peaks, & plenty of other exciting outdoor places.
Sign up for free
Ape Cave Interpretive Site/Lower entrance
Highlight • Cave
Tip by
Cougar Mountain Regional Wildland Park
Highlight • Forest
Tip by
Cave Hole Trail
Highlight (Segment) • Trail
Tip by
Trail of the Two Forests
Highlight • Natural Monument
Tip by
Tamanowas Rock Sanctuary
Highlight • Natural Monument
Tip by
The crawl
Highlight • Cave
Tip by
Tin Mine Entrance
Highlight • Cave
Tip by
Actual Cave
Highlight • Cave
Tip by
Sign up for free to discover even more caves in Washington.
Sign up for free
Already have an account?
Start today with a free account
Your next adventure awaits.
Login or Signup
Popular around Washington
The Lewis & Clark Trail — Following the Corps of Discovery
Wonderland Trail — 93 iconic miles around Mount Rainier
Pacific Northwest National Scenic Trail — From Alpine to Alava through the untamed Northwest
Pacific Crest Trail from Mexico to Canada – 4,200 kilometres of wilderness
Winthrop Chelan Traverse — The backroads of the Eastern Cascades
Wonderland Trail — 3-Day fastpacking through the dreamscape
Olympic Discovery Trail — A True Northwest Adventure
The tour of your life – music trails on the Pacific coast
Volcanic peaks and glistening shores – discover Oregon and Washington
The pristine beauty of the US National Parks
Other adventures in Washington
Tips from the Community
Tin Mine is a spot where you can peek into an old tunnel and imagine the history behind it. This fun, varied hike on Green Mountain takes you through lush forest, past small waterfalls, and alongside a quiet beaver pond—making the journey as rewarding as the destination.
0
0
Tamanowas Rock Sanctuary is a protected area featuring Tamanowas Rock, a 150-foot-high geological formation with caves and crevices, considered sacred by the Coast Salish peoples. The trail gets steeper and narrower as you get closer to the rock. The sanctuary is privately owned by the Jamestown S'Klallam Tribe, so visitors are welcome but should be mindful of its cultural importance. It’s also a great spot for fungi enthusiasts to explore.
1
0
Cougar Mountain Park spans nearly 3,000 acres, featuring over thirty-five miles of fantastic trails winding through second-growth forests, streams, wetlands, cliffs, and historical mining caves. There are breathtaking views throughout the park of the Cascade Mountains, Lake Sammamish, Bellevue and Seattle, along with other more secluded areas, which are ideal for spending time surrounded by nature away from the fast pace of the city. Most trails are mainly for hikers; however, some allow horseback riding, so keep an eye out for equestrians as you explore this beautiful area.
0
0
Hiking among towering moss-covered rocks with small caves to either side is a bit creepy, but it's worth the visit! It's not very well marked, but you have stairs to one side if you don't want to walk in between the rocks. There's a wooden fence blocking off an unsafe path between rocks, so if you see that, you're in the right place.
0
0
'Cave Hole Trail' is named after the caves that you can still find along the path. They are remnants of the mining history in the area.
2
0
Beautiful forest path with lush vegetation, very nice to walk.
1
0
This diminutive cave has become a climbing wall of sorts. If you look up, you might spot metal climbing anchors in the overhanging roof.
1
0
This natural area is known for its unique rock formations and beautiful moss-covered boulders. You can explore this enchanting area, marvel at these rock formations, and appreciate the serene beauty of the surrounding forest.
1
0
Frequently Asked Questions
What types of caves can I explore in Washington State?
Washington State offers a diverse range of caves, including extensive lava tubes like Ape Cave, limestone caverns such as Gardner Cave, and marble-formed systems like Newton Cave and Cascade Cave. Each type presents unique geological features and exploration experiences.
Are there any family-friendly caves in Washington State?
Yes, several caves are suitable for families. The Lower section of Ape Cave is about 1.5 miles roundtrip, mostly flat, and considered easier. Additionally, the Trail of the Two Forests also offers a family-friendly cave experience.
What are the difficulty levels for exploring caves in Washington?
Difficulty varies significantly. The Lower Ape Cave is relatively easy, while the Upper Ape Cave is more challenging, involving scrambling over boulders and climbing a lava fall. Caves like Newton Cave, being an 'active cave' with vertical descents, may require ropes and specialized caving experience.
What should I bring when visiting caves in Washington?
For caves like Ape Cave, you should bring at least two sources of light (headlamps or flashlights), wear sturdy hiking shoes, and dress in layers, as the temperature inside remains around 42°F (5.5°C) year-round. Gardner Cave is even colder at 39°F (4°C), so a light jacket is recommended there too.
When is the best time to visit caves in Washington State?
The best time to visit depends on the cave. For Ape Cave, timed entry permits are required between May and October. Gardner Cave is open for tours between May 15th and September 15th. Always check specific cave operating seasons and permit requirements before planning your visit.
Are permits or reservations required for any caves?
Yes, permits and reservations are often required. For Ape Cave, timed entry permits are mandatory between May and October and should be reserved in advance via recreation.gov. Guided tours for Gardner Cave also require reservations.
What unique geological formations can I see in Washington's caves?
Washington's caves showcase diverse formations. Ape Cave, a lava tube, features smooth walls and lava falls. Gardner Cave, a limestone cavern, offers fascinating geological formations, and rangers may use black lights to reveal hidden details. Newton and Cascade Caves, formed in marble, display narrow, often vertical passages with interesting rock formations and colored rocks.
Are there any historical caves or mining sites to explore?
Yes, Cougar Mountain Regional Wildland Park features historical mining caves among its trails. The Cave Hole Trail is also named after remnants of the area's mining history. Additionally, the Tin Mine Entrance is another historical cave site.
What outdoor activities can I do near Washington's caves?
Near many of Washington's caves, you can find various outdoor activities. For instance, you can explore numerous hiking trails, including easy options like the Marymere Falls Nature Trail or more challenging routes like the Skyline Trail Loop. For cycling enthusiasts, there are gravel biking routes such as the Suntop and Skookum Flats Loop. You can find more details on these activities in the Easy hikes in Washington, Hiking in Washington, and Gravel biking in Washington guides.
What do visitors enjoy most about Washington's caves?
Visitors appreciate the unique underground hiking experiences, the cool temperatures inside the caves even during summer, and the distinct geological formations. The sheer scale of lava tubes like Ape Cave and the interpretive tours at places like Gardner Cave are particularly popular. The serene beauty of surrounding forests and unique rock formations, such as those at Talus Rocks, also add to the appeal.
Are there any ice caves in Washington State?
Yes, the Big Four Ice Caves are a notable example. These caves are formed by waterfalls and melting snow from the mountains above, attracting many visitors annually.
Most popular routes in Washington
Most popular attractions in Washington
Get inspired with the komoot mobile app
Didn’t find what you were looking for?
Discover more caves in Washington region by region:
Explore more
Extend your search for the best caves by checking out these guides of the top ones in Washington:
