~276-acre Yakima River natural preserve in Richland – dirt trails for hiking, birding, and mountain biking, and a hub connecting several regional trails.
23-mile paved riverfront loop trail linking Richland, Kennewick, and Pasco along both banks of the Columbia – walk, run, or bike, with many trailheads.
160-acre undeveloped natural area at the mouth of the Yakima River in Richland – hiking, birdwatching, and fishing, reached by a foot causeway from Wye Park.
Benton County butte preserve near Richland – a moderate shrub-steppe hike to sweeping Tri-Cities and Yakima Valley views. Free, trailhead off Dallas Rd.