Expedition Everest (Disney's Animal Kingdom)

Expedition Everest — Legend of the Forbidden Mountain is a steel roller coaster built by Vekoma at Disney's Animal Kingdom theme park at the Walt Disney World Resort in Lake Buena Vista, Florida. The ride is themed around the Yeti hiding in Mount Everest. It is listed in the 2011 book of Guinness World Records as the most expensive roller coaster in the world. Including sets and extras, its total cost was reported to be US$100 million, following 6 years of planning and construction. It is the tallest of the artificial mountains at Walt Disney World. Contrary to popular belief, Expedition Everest is not Florida's tallest mountain. Expedition Everest stands at 199 feet tall while Walton County's Britton Hill is 345 feet tall. It is Disney's 18th mountain-themed attraction.

The attraction features a stand-by, Fastpass, and a single rider line. The queue starts at the office of the fictional "Himalayan Escapes" travel agency, progressing to a replica temple with little holy figures. Visitors next enter a tea garden, followed by a room with equipment from a successful expedition, and then the "Yeti Museum", which contains information on the Yeti and a moulding of a Yeti footprint. There are also about 8,000 artifacts brought from the Nepal trip in the museum.

The riders board the roller coaster in the model village of Serka Zong, to begin a speedy route through the Himalayas to the base of Mount Everest.

The train departs the station to the right and climbs a small lift leading to a short drop, then circles around to the 112-foot lift hill, carrying the riders into the 200-foot-high mountain. On the way up it passes through a ransacked temple with murals of the yeti, warning the riders that the mountain is his territory. At top of the mountain the train curves around the main peak and goes through a cave. When it emerges, it draws to a halt in front of track that has been torn apart, presumably by the yeti. During this brief stop, one can hear the hissing of the brakes as a switch behind the train is thrown. The train then rolls backwards along a new route that spirals down through the mountain, coming to a halt in a large cave, where riders see the yeti's shadow on the wall as he tears up more track. As the shadow moves away, the train rolls forward out of the mountain and down the main 80-foot drop. It enters a 360° helix and speeds back up through another cave in the mountain, where the roars of the yeti are heard once more. The train exits from the rear of the mountain and enters a large helix before being lifted back into the mountain a final time. The train drops through a cave, where a large yeti is reaching down toward it. On reaching the bottom of this drop, riders return to the unloading dock and depart into a gift shop. One ride takes about 2 minutes and 50 seconds.

The yeti is the largest and most complex audio-animatronic figure ever built by Walt Disney Imagineering. It is 22 feet tall. Its "skin" measures 1,000 square feet, and is held in place by 1,000 snaps and 250 zippers. Its movement is controlled by 19 actuators (when functioning in "A-mode", its full mode of operation). It can move 5 ft horizontally and 2 ft  vertically when functioning in "A-mode".

The yeti has not been in full "A-mode" operation since a few months after the ride's opening, when its framing split, causing significant risk of catastrophic malfunction if it were operated. It currently only operates in the alternative "B-mode", which is limited to a strobe-light effect designed to give the appearance of movement, earning it the nickname "Disco Yeti". The problem was caused by damage to the yeti's concrete base structure, which is unlikely to be repaired until a major refurbishment in the future, because the design limits access to the yeti without major disassembly of the superstructure.