I don't know why anyone would go to tour an underground watery cave and wear flip-flops or crocs!!!!
We had zero problem with flip flops?!!We live in Souther California, maybe because we live in flip flops this was not a problem for us but we had absolutely no problem navigating the caves and our guide did not seem the least bit concerned about our foot wear either.
If you go into the caves you will get wet feet ! There is no doubt . Flip flops unwise. Sanders or crocs are Fine
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