LOST ISLAND
Theme Park & Water Park
Waterloo, Iowa
Park News -
2026 - Nothing is known at this time...
 2027 - Forbidden Lair - (8/19/2026) It has been a busy week with the combination of new project activities at Herschend parks (Silver Dollar City & Dollywood) mixed with the onslaught of news from Disney’s D23… so I know I missed a few other announcements.
Case in point… Lost Island Theme Park announced what all their hints about having dug too deep were all about. It’s a new shuttle roller coaster called Forbidden Lair… but the really kind of confusing thing is that it’s also going to be the world’s first RMC Wild Moose coaster. I’ll let that sink in a second… the world’s first RMC Wild Moose has been announced… and it isn’t anything like what we thought it would be, namely a very twisted and rambunctious “mouse-esque” style coaster. Instead this Wild Moose appears to share a lot in common with a Vekoma style Family Boomerang coaster, starting off the family friendly shuttle coaster experience with a backwards pull up a 79 foot rear lift hill out of the station before dropping the train down into a series of twists and turns at 38mph before heading up a Spike track, only to roll backwards back to the station. Oh… and it has one small underground drop into a tunnel along the way… which is where they try to tie into the theme of encountering the lair of some underground species.
I mean it’s great the park is getting a new coaster, and a second one from RMC after all, following up to the addition of the Fire Runner “Raptor” style coaster that opened in 2025. It’s just all the hints about digging too deep got me thinking more along the lines of a dark ride or an indoor dark coaster, or at least one that was a bit more enclosed and… well… creepy. You know… a little more of “The Descent” and a little less “Camp Snoopy”.
At least the open nature of Forbidden Lair will serve as a fun proof of concept for the new train and track design used to allow for more extreme Wild Moose style elements. Look for Forbidden Lair to open as part of the park’s 2027 season.
 (7/22/2026) A few more details about the teasers showing up at the Lost Island theme park. According to our source, there are several of the same teaser displays in the park, all seem to be mounted to the light poles in the Yuta area of the park. This makes sense, as the teasers indicate that something once buried has been dug up, and the Yuta area of the park is themed around the element of Earth. This section of the park is home to the Matugani launch coaster, the Yuta Falls flume ride and Kukui Station bumper cars.
While I haven’t heard much from the rumor mill, there are those who wonder if the first RMC Wild Moose may be coming here, but not sure how it would tie into the theme being teaser, which sounds like it could be more about some kind of indoor / dark ride experience, or enclosed roller coaster. So maybe an indoor Wild Moose? No, I think they would want to build the first one outside to show it off.
(7/19/2026) Something is going on at Lost Island it seems. Guest photos from the park sent my way show a series of red paint survey markings on the ground, along with some survey flags in the landscaping. Meanwhile a strange sign was also seen that said, “We Dug Too Deep”, with a pair of glowing green eyes sitting below and the words, “Coming Soon”. So the question is, just what does Lost Island have in store for 2027.
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