Big Thunder Mountain Railroad Returns to Magic Kingdom with Refurbishment and New 38-Inch Height Requirement
After a year-long refurbishment, Big Thunder Mountain Railroad reopens at Magic Kingdom on May 3 with a transformed Rainbow Caverns, refreshed Audio-Animatronics, new trains, restored effects, and a lowered 38-inch height requirement; opening-day crowds caused long waits (around two hours) and limited Lightning Lane availability as testing concluded the prior day.