Overview

• An underground Rainbow Caverns scene will feature phosphorescent pools and iridescent stalagmites and stalactites that shift from tranquil to foreboding with a deep rumble.
• Big Thunder Mountain Railroad is confirmed to return in 2026, though Disney has not announced an exact opening date.
• Disney describes the project as a “mountain-top to cavern-deep” refurbishment intended to preserve the classic ride while adding refreshed effects and expanded storytelling.
• Media briefings and the Disney Parks Blog provided the first official look at the updated story beats and concept art tied to the reimagined caverns.
• Reports point to full track replacement expected to smooth the ride experience, and separate claims of Vekoma involvement remain unconfirmed.