Medusa is a steel roller coaster located at Six Flags Discovery Kingdom in Vallejo, California. Built by Bolliger & Mabillard, Medusa opened in 2000 as the first floorless roller coaster on the West Coast. The roller coaster features seven inversions, a 150 ft-tall lift hill with a 150 ft drop, and the first sea serpent roll element ever built on a B&M roller coaster. The ride is the longest coaster in Northern California at 3937 ft long and is notable as having one of the largest vertical loops in the world at 128 ft. It also shares the height record in Northern California with another two rides in the same park, The Flash: Vertical Velocity, and Superman: Ultimate Flight at 150 ft high.
History
On November 10, 1999, Six Flags Discovery Kingdom (then Six Flags Marine World) announced that Medusa would be added to the park. It would be a custom floorless coaster built by Bolliger & Mabillard.[1] The ride officially opened on March 18, 2000.[2]