GateKeeper is a steel roller coaster located at Cedar Point in Sandusky, Ohio, United States. Designed by Bolliger & Mabillard (B&M), it was the fifth Wing Coaster model in the world. The ride opened on May 11, 2013, on the most successful opening weekend in the park's history. GateKeeper has the highest inversion in the world, with its 164-foot (50 m) Wing Over drop.