Lavacicles, a common feature, are squeezed out of a lava tube’s roof by gases under high pressure and then cooled mid-drip. The gooey appearance of a rock wall in Manu Nui cave was formed when ...

Lava tubes can range in size from a small hollow barely three feet in diameter ... collected samples from patches of rock surfaces marked by “biofilms”—areas that had begun to be colonized ...

A trip to the Mojave Lava ... Tube hike, you will be driving along a dirt road for a good few miles, so you will have to be prepared for a very bumpy ride. Be careful when driving, as lots of ...

Jeju Volcanic Island and Lava Tubes together comprise three sites that make up 18,846 ... with its waterfalls, multi-shaped rock formations, and lake-filled crater. The site, of outstanding aesthetic ...

It’s a mile long, self-guided lava tube. Around 42 ... as many as 120 steps on a rock carved staircase are a modest challenge ...

Kilauea at sunrise: A massive flow streams from a lava tube at the Kamokuna ocean entry ... spattering 2,000-degree Fahrenheit liquid rock visible in the caldera of Kilauea volcano this afternoon ...

For a unique adventure along the Road to Hana, stop for a self-guided tour of the Hana Lava Tube, which can be found near mile marker 31. It takes no more than 40 minutes to explore about 1/3-mile ...

It’s not every day you get to walk in the footsteps of an ancient volcano, let alone explore one of the oldest, longest and most well-preserved lava tube systems on the planet. But for Aussies ...