Vehicle & Technical > Not Anything Listed Above....
There,s a hole round my tractor
Colin 009:
Go down at least to "Middle earth" :lol:
Wolfie:
--- Quote from: "gords" ---So ... how deep are these sink holes then? 8-[
--- End quote ---
My best guess would be "deep enough". A quick search shows that there is nothing very deep on the North Island, all the deepest caves being on the South island, http://www.massey.ac.nz/~sglasgow/nzss/deepcave.htm , but I haven't been able to get to the Nelson Speleo Group website as it causes a fatal error in IE. There's some deep enough stuff over the other side of the North Island around Waitomo, the biggest pitch I did out there was a 100m free hang but it was all in daylight. For deep caves you need to look closer to home, they're mostly in europe, http://www.pipeline.com/~caverbob/wdeep.htm . The Berger was the first explored to over 1km depth but is now only the 25th deepest. Eeyore & I got down to about -600, but the condirtions were such that any further wouldn't have been sensible.
Must say I prefer big open horizontal stuff, and was lucky enough to be on the original exploration of Khe Rhy, http://www.croydoncavingclub.org.uk/Archive/Pelobates/073/S12.htm , which has now been extended to give the longest underground river in the world that can be traversed without diving.
Regards
Andy
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