With the release of the Aquatic pack I had the animals I needed to finish the tropical hall. Until now I had no time to build their exhibits as I've been busy with the construction of some other exhibits and buildings outside.
Now, the tropical hall have a big sign on the entrance. This hall is called "El Bosc Inundat" (The Flooded Forest")
Actually it is not focused on aquatic animals, as the first animals that you encounter (after the terrariums) are the lemurs, but later the water becomes more and more important as you find gharials, otters and caimans.
The last part to be built are the exhibits for giant otters and Cuvier's dwarf caimans. There's a big swimming pool, divided by a glass barrier so both species can see each other when they are swimming:
Guests have three main observation zones. One at ground level, one underwater and the last one over the exhibits.
And an aerial view of the tropical hall complex:
I'm planning to upload the zoo on the workshop few weeks after the release the 1.5 patch, as I'll include some custom billboards and maybe some animal of the last DLC. Anyway, the zoo is still WIP and it will be expanded a lot in the future.