Olallie State Park
Olallie State Park is a forested day-use park along the South Fork Snoqualmie River, known for its dramatic waterfalls, mossy canyon scenery, and access to the historic Snoqualmie Pass corridor. Visitors come for short hikes, picnicking, fishing, and scenic views in a cool, shaded mountain setting.
Free
Visiting with Dogs
Dogs allowed on leash; keep pets under control and clean up after them. Check posted area restrictions before visiting.
Visitor Tips & Reviews
What Visitors Say
Scenic waterfalls, lush forest trails, and easy access from Seattle make Olallie State Park a favorite for hiking, picnics, and quick nature escapes.
Tips from Visitors
- Wear sturdy shoes for rocky trails and uneven terrain.
- Check waterfall conditions before visiting; trails can be slippery.
- Bring water and snacks; amenities are limited.
- Keep pets leashed and clean up after them.
- Pack layers; weather can change quickly in the mountains.
Best Time to Visit
The best time to visit Olallie State Park is late spring through early fall, when trails are drier, river levels are more manageable, and waterfall views are especially scenic. Summer offers the most reliable access and comfortable picnic weather.
Amenities
Nearby Attractions
Explore these attractions near Olallie State Park:
- Twin Falls State Park Trail AreaA popular nearby waterfall destination with scenic river views and short forest walks.0.5 miles away
- North Bend DowntownA small mountain town with dining, coffee, and shopping for visitors exploring the area.7 miles away
- Snoqualmie FallsOne of Washington’s most famous waterfalls, offering dramatic views and visitor facilities.18 miles away
Things to Do at Olallie State Park
Camping at Olallie State Park
Olallie State Park has no camping; nearby campgrounds in Snoqualmie Pass area offer tent, RV, and reservation options.
Hiking Trails
Olallie State Park offers a scenic day hike experience with lush forest, river views, and easy access to the popular Twin Falls area. Trails are generally well-loved for their beauty and moderate challenge, though some sections can be muddy, rocky, or crowded on weekends. Hikers often enjoy the waterfall views, shaded paths, and quick escape into nature.
Twin Falls Trail
ModerateA popular out-and-back hike along the South Fork Snoqualmie River to a scenic waterfall viewpoint, with lush forest and river scenery.
Olallie State Park River Trail
EasyA gentle forested trail with river access and scenic views, good for a shorter hike or relaxed outing.
Iron Horse State Park Trail Segment
EasyA mostly flat, historic rail-trail segment near the park offering a longer walk or bike-friendly route through wooded surroundings.
Rattlesnake Ledge Access Area Trails
ModerateA longer forest hike in the surrounding area with steady climbing and rewarding views, suitable for hikers wanting a more strenuous outing.
Directions
From Seattle, take I-90 east to Exit 38 near North Bend, then follow signs toward Olallie State Park and the Twin Falls area. The park is just off the interstate in the Snoqualmie Pass corridor.
Contact & Info
Frequently Asked Questions
What is Olallie State Park best known for?
Olallie State Park is best known for its scenic hiking, river views, and the popular Twin Falls area nearby. Visitors often mention the lush forest, waterfall scenery, and easy access from I-90 as highlights.
Are there easy hikes at Olallie State Park?
Yes. Many visitors find the trails to Twin Falls and nearby viewpoints manageable, though some sections can be steep, muddy, or rooty. Good shoes are recommended, especially after rain.
Is there a fee to visit Olallie State Park?
A Washington State Parks Discover Pass is typically required for day visits. Some visitors note that parking and access can be limited during busy times, so it helps to arrive early.
Can you bring dogs to Olallie State Park?
Dogs are generally allowed on leash in state parks, and many visitors bring them on the trails. Reviews often mention keeping dogs under control because paths can be narrow and crowded.
What is the parking like at Olallie State Park?
Parking can be limited, especially on weekends and during good weather. Visitors often recommend arriving early because the lot fills quickly and roadside parking may be restricted.
What should I bring for a visit to Olallie State Park?
Bring sturdy shoes, water, and weather-appropriate layers. Many visitors also suggest bug spray and a camera. Trails can be wet and slippery, so extra caution is helpful after rain.

Don’t Forget the Essentials
Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.
View Gear Checklist →