Mauna Loa, the world's largest active volcano, is the mighty giant of Hawaii that's still bubbling away, waiting to be explored.

Passing by a series of subterranean geological features named cave chocolate, cave bacon and cave popcorn, I start to wonder ...

The Hawaii Volcanoes National Park is home to the summits of two of the world’s most active volcanoes: Kilauea and Mauna Loa.

The colossal Axial Seamount, one of the most active and best-monitored underwater volcanoes in the world, could erupt in a ...