NOAA, the nation’s leading climate science agency, may lose dozens of offices, including one that is key to the Mauna Loa Observatory in Hawaii. By Austyn Gaffney On the flanks of the largest ...

and Mauna Loa, one of the largest in the world. Visitors can hike across the floor of a dormant crater, view ancient petroglyphs and steam vents, and stroll through a primeval rain forest to an ...

You'll be trekking through forests and sharp ... a composting toilet, and rain catchment water (which you'll have to purify before drinking). The Mauna Loa volcano crater is 30 minutes down ...