Mount Floria Cave is northwest of Rabella Wetlands Skyview Tower, south of Hickaly Woods, at the top of a small waterfall.
Cave Location
Mount Floria Cave is located at 1958, -2608, 0073, which is northwest of Rabella Wetlands Skyview Tower, south of Hickaly Woods, at the top of a small waterfall. There is another entrance at 1789, -2989, 0082.
Cave Features
In the cave, you find a Bokoblin guarding an area full of Zonai devices. The next tunnel is surrounded by thorns, so after you defeat the Bokoblin, use Ultrahand to attach the two stone slabs together (or just use one stone slab), then attach the axles of the wheels to the four corners of your stone slab(s). There is also a steering stick on one of the shelves, which you can attach to the top of the stone slab(s). You may also want to attach the Beam Emitter (shaped like a unicorn's head) to the front of your vehicle. If you have a Construct Head capsule, you can attach the Beam Emitter to the top of the Construct Head, then attach the Construct Head to the front of your vehicle. Then check on the steering stick to start moving. Drive past the thorns.
Beyond the thorns, you find a group of Bokoblins. After you defeat them, you can open the chest that they were guarding, to get a shield.
Then you can drive your vehicle southwest past more thorns. There will be another Bokoblin, and the path splits, with one path going east and one path going southwest. First, go east, and you will go up a spiraling slope. Defeat the Bokoblins here, and you can use the spring that you find in this area to go up to the top of the column that has stone in it. There is chest at the top of the column that contains a Large Zonai Charge.
Continue going up the spiraling slope, and after you defeat more Bokoblins, you find a set of bars that block the path. However, there are some broken boulders to the right of the bars. Use a bomb flower, or time bomb, or bomb barrel, or heavy weapon to break these open, or just drive into them with your vehicle at high speed. Then drive past the thorns behind the bars, and break down the boulders on the right to find this cave's Bubbulfrog.
Drive back down the slope to where the path split, and go southwest. There is another area with Zonai Devices. If you go south, you find another exit from the cave.