Theler Wetlands & Twanoh State Park

Eight miles apart on the south shore of Hood Canal near Belfair, these two area provide great opportunities for easy hiking and exploring nature.

on the trail

Mary E Theler Wetlands

Hike four interpretive walking trails covering two miles within 139 acres of protected salt marsh and estuary wetlands at the mouth of the Union River in Belfair. The Mary E Theler Wetlands protects plants, birds and animals in natural habitats including forests, wetlands, saltwater and freshwater marshes, swamps, bogs and river estuaries. It's 3.5 miles round trip with 50 feet of elevation gain.

Twanoh State Park

Enjoy a pretty woodland hike along a creek, through a ravine and old growth forest. It's 2.3 miles round trip with 375 feet elevation gain. A Discover Pass is required for Twanoh State Park.

Information for Leaders


The Mountaineers has a commercial use permit with Washington State Parks for all free and fee-based outings at state parks. Leaders should carry a print or digital copy of our  commercial use permit to show rangers they may encounter.

  • Difficulty: Easy
  • Length: 5.8 mi
  • Elevation Gain: 425 ft
  • 400 ft
  • Land Manager: Twanoh State Park
  • Parking Permit Required: Discover Pass
  • Recommended Party Size: 12
  • Maximum Party Size: 12
  • Maximum Route/Place Capacity: 12
  • see Land Manager
Trip Reports

This is a list of titles that represent the variations of trips you can take at this route/place. This includes side trips, extensions and peak combinations. Not seeing a title that fits your trip? Log in and send us updates, images, or resources.

  • Theler Wetlands
  • Mary E Theler Wetlands
  • Mary E Theler Community Center
  • Twanoh State Park
  • Hood Canal Nature Trails

There are no resources for this route/place. Log in and send us updates, images, or resources.