The park has 47+ trails for all skill levels totaling 250 km + of trails. There are smooth trails with gentle banked corners for beginners, steep twisty trails for intermediates, tight trails with jumps and stunts for advanced riders, and challenging trails with giant jumps, drops, and root-strewn terrain for the experts. During the summer, high speed quad chairlifts (Fitzsimmons and Garbanzo) used by the bike park have every second chair replaced with a bike rack. These racks fit four bikes, three in grooves and one on a hook on the side of the chair. The bikers then get on the next chair which is a normal passenger carrier. The bike park has three zones: the Fitzsimmons Zone (the lower zone), the Garbanzo Zone (the upper zone) and the Creekside Zone. All riders take either the Village Gondola or the Fitzsimmons quad to the Olympic Station area. Then intermediate and advanced riders can take the Garbanzo quad up further to the Garbanzo zone. Garbanzo riders can then return to midstation or Whistler Village, the base of the bike park. The Creekside Zone can be accessed via the Creekside Gondola or by riding through the Garbanzo Zone. From the top of Garbanzo to the village is an impressive vertical descent; eclipsed only by the descent from the top gondola station or the top of the Peak Chair, the highest accessible point on the mountain. "A-Line" is the most well-known track. The Boneyard Slopestyle Course is part of the Fitzsimmons Zone and is located at the very bottom of the bike park, visible from the base of Whistler Mountain. The Boneyard features a collection of high-intermediate and advanced slopestyle features, including drops, dirt jumps, and more. Each summer since 2004, the park hosts Crankworx, the largest annual freeride mountain biking competition in North America. Another major competition, Harvest Huckfest, was held there each fall from 2002 to 2008. For the 2005–06 ski season, Blackcomb Mountain opened the Tube Park to allow for recreational tubing at the resort. The tube park is located at Base II alongside the Village Run. The lift operator on the Quicksilver lift pressed the button to make a routine stop, to allow a fallen skier to get out of the way of the unloading ramp. Instead, the emergency brake activated, sending shockwaves down the cable.