Molnár János is the longest actively thermal cave in the world, at something like 5 - 6 miles as best as I can determine. It's almost entirely underwater, as the article points out. Here in Virginia we're actively exploring Warm River Cave, which is a bit over 3.5 miles long at present and does not require scuba. Unfortunately the cave is closed for recreational caving.
These caves are real anomalies. Warm River has average air and water temperature of around 70 degrees in an area where caves are typically more like 54. However the many streams in the cave vary dramatically in temperature. The historic Hot Stream is in the 80s, but in the new section we have discovered infeeders up to 100 degrees, and in some places the air temperature is up to 80 degrees. It's actually too hot, which is rare for a cave. We gave a presentation on Warm River Cave at the NSS Convention in Missouri a couple of years back. Mark Minton mmin...@caver.net On Mon, 14 Aug, 2017 at 3:48 AM, 'Jerry' via Southwestern Cavers of the National Speleological Society <swrcav...@googlegroups.com> wrote: To: swrcav...@googlegroups.com; Texascavers@texascavers.com What It's Like to Cave Dive in Budapest http://www.scubadiving.com/what-its-like-to-cave-dive-in-budapest Jerry jerryat...@aol.com
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