The themeing in this area (actually in the whole park) is truly incredible. There is steam that rises up off of the lava that is "flowing" down into the water. Huge jets of water also shoot up into the air every so often to give the effect of an underwater volcanic vent. And Mt. Prometheus itself, "erupts" with huge blasts of fire coming out of the top of it while a loud rumbling sound reverberates throughout Mysterious Island. The eruption takes place throughout the day and night, but I have never been able to figure out if it is on a timed schedule or if it is just random.
Jungle Cruise, July 1963
4 hours ago