A man in Hawaii has died after falling down a "lava tube" - a tunnel formed by volcanic eruptions - while trimming trees on his property. Police say the 71-year-old had apparently fallen about ...

Hawaii's network of lava tubes is a fascinating destination ... to a two-hour trek ($95) that requires full gear with helmets, knee pads, and gloves. If your nervous system can handle it, "the ...

It was no more than three feet wide—just big and inviting enough for the couple to pull their car over and try to ... the Earth’s crust. Most of Hawaii’s lava tubes are formed by a type ...

Lava from Mauna Loa, which began erupting Nov. 27 after being quiet for 38 years, was 1.76 miles (2.83 kilometers) from Saddle Road, also known as Route 200 or Daniel K. Inouye Highway, the U.S ...