Here's something else I've been working on, this being the third incarnation after several failed attempts. I don't want to detail too much as to what this building's purpose in the game is as it will definitely ruin the fun, but I can say that this is where much of the water flow of central Isla Nublar is controlled, located underground and connected to the maintenance tunnels. Drain pipes push water out of an underground spring to fill two of the more recognizable pools you'll come across on the island.