The Deschutes River Trail is a must do mountain bike ride or hike in between Sunriver and Bend, Oregon. The river varies from calm water to waterfalls. The trail follows along the river and goes through pine forests, meadows, and lava flows. Most of the single track is smooth with a few more technical rocky sections.  

This trail can be accessed from Meadow Day Use Area, as well as the following day use areas along Forest Road 41-Lava Island,  Big Eddy, Aspen, Dillon Falls, Slough, Benham Falls West, and Benham Falls East.  A map is available on Bendtrails.org. Avoid riding on busy summer weekends as this popular trail can get crowded. 

For a shorter, 3-mile loop, check out this adventure.