The Trinity River is the longest tributary of the Klamath River, approximately 165 miles long, in northwestern California. It drains an area of the Coast Ranges, including the southern Klamath Mountains, northwest of the Sacramento Valley. Designated a National Wild and Scenic River, along most of its course the Trinity flows swiftly through tight canyons and mountain meadows.
In "High Adventure 2014", the Young Men go rafting on a section of the Trinity River in Big Bar. They raft through several rapids, and even stop alongside the river to jump off a cliff into the water.