Okay here are a few elemtns I woudl like to see:
Guests are on a minining expedition in-side Geyser Mountain Guest ride in oversized EMV's that are made to look like msome sort of a mining machine but different from the JttCoE cars, (maybe we could just changes those cars as they are going to amphibous in this new verison anyways, with the new prehistoric sea scene) seating about 32 people by4 rows of 8.
At sevral point ins the cave guests are given the option of selection different tunnels to go through wher the path forks, like Horizions guests hit buttons in fron of them and majority rules.
Deeper into the cave the machine stalls out and there are slight tremmors then withough warning a full blown earthquake hits the mountain, staligtes are falling the wals are crumbling and the whole floor of the cave slants forward and your machinerolls forward and crashes into a stalagmite, then just as you get the machine to work again the stalagtite brakes and you roll forward into a large crack you go down the side of a really steep into incline and roll into this great chasam, once in there you hear more rumbling and a gyser below you goes off, you shoot vertically up, but the the gyser gives way and you free fall down about 8 stories using EMV2 technology. The cars then burrow out the side of the chasam just before the geyser erupts again, collapsing the chasam behind them.