“This particular cave is very beautiful due to certain features; the lavafalls (essentially lava-rock falls that look like ... the tubes), and the outrageous color of the lava rock (ranging ...

"The Lava Falls" they call it ... So what turns this into the glowing fire color that makes the waterfall famous? In the middle of February, the sun is in the exact right position of the sky ...

“In the two-hour [Lava Falls] tour, there’s lots and lots of features that I can show people. We go less than a third of a mile into the cave, and I explain a lot of the geology,” Shick says.

Lava Falls—rated Class 10 on the canyon system—is notoriously difficult. In 1869, John Wesley Powell and his team picked up their wooden boats and carried them around these rough waters.