On the northside of Seattle, the I-5 Colonnade Mountain Bike Skills Park is a small urban park with purpose-built bike courses. The Tqalu Trail is the beginner / novice course that has a ladder bridge, log rolls and a rock chute. The Limestone Loop is an intermediate winding 0.5 mile loop with tight switchbacks, ladder bridges, rock chutes, a suspension bridge and log rides. The Advanced Area has jumps, berms, elevated skinnies, rock chutes and a pump track.
The I-5 Colonnade Mountain Bike Park is located under the US5 highway near St Marks Cathedral. The best US5 highway exit is #168A. The best parking is along the east side of the park near 1800 Lakeview Blvd E in Seattle.
Overall, I-5 Colonnade Mountain Bike Skills Park is the 58th most popular mountain bike trail of all 59 mountain biking rides in Washington.