The opening for the newest attraction at Six Flags Magic Mountain in Valencia -- a 400-foot-drop tower ride -- has been delayed a week for further testing.
The ride, dubbed "Lex Luthor: Drop of Doom," a drop-tower thrill ride, was scheduled to open to the public this weekend but has been pushed back to July 7.
Park officials said testing for the ride is taking longer than anticipated.
The delay means that Six Flag's big summer attraction opens more than a month after Universal Studios Hollywood opened its multimillion dollar ride, "Transformers: The Ride-3D," and three weeks after Disney California Adventure in Anaheim opened "Cars Land," part of a $1.1-billion expansion and overhaul.
On Drop of Doom, riders will be strapped into a set of seats attached to a cable that will pull them to the top of the 400-foot tower before they drop to the ground, reaching a speed of 85 mph.
Drop of Doom breaks the record for this category of ride, previously held by the Giant Drop at Dreamworld in Queensland, Australia, at 390 feet.
On the Six Flags Magic Mountain Facebook page, several theme park fans expressed frustration with the delay.
"I'm disappointed," a teenager from Illinois wrote on the social media page. "I just canceled my trip to Six Flags Magic Mountain and will be visiting Knott's Berry Farm instead. They don't have delays like this dump!"