After leaving that large cavern room, you once again cross back over the river and start a climb to the second lift hill. Here is what the track looks like doing the crossing without any supports added yet.
Here are these two bridges with more of the custom supports added (yellow arrows headed left to right). The orange lines in the distance are the track passing back over the river cavity later during the ride.
Here is looking down on this section before I close it up. The yellow circle are the lift hills below the cave ceiling that will now be closed up. The green area is the beginning of adding the cave roof above the top part of the lift hills.
Here is a video of how I typically fill in the cavern ceilings and add lighting to interior/underground areas.
I hope/plan on sharing more videos like this in the future.
Here is the top of these lift hills. Starting to enclose them and add supporting rockwork below the tracks. And, you can see the chaos that's about ensue down below.
Here is the next part of the rides before much work is done. The coasters come down from the lifts on the far right and move into a series of helix turns and dips and bumps over and under each other...and yes, that's the train ride track cutting through the middle of the coasters.
Looking down on the next section of track after the drop hills...the coasters skirt along side each other wobbling their way over more fire and lava. Here the lava is placed, but the tracks still need to be raised and smoothed out a bit still.
After leaving the fire tunnel, both tracks split ways in this largest cavern. Each winds around, dips under and above each other and the train track that you can see cutting through the middle of this cavern. Wall are pretty much complete except for some fine tuning, but it still needs to be closed in once completed. Custom supports and lighting also still need to be added.
