Island Conversations host Sherry Bracken talks with Hawaiian Volcano Observatory geophysicist Jim Kauahikaua  about the water in the bottom of Kilauea crater--Halema'uma'u-- plus a general update on Kilauea and Mauna Loa.  We also air conversations about the status of the Mauna Kea observatories with Doug Simons, Director of Canada France Hawaii Telescope;  Jessica Dempsey, Deputy Director of East Asian Observatories; and Rich Matsuda, Operations Director of Keck Observatory.  Photo is telescopes on the slopes of Mauna Kea, credit Cuillandre/CFHT. Air date:  August 18, 2019