This is a barefoot tour - if you might want to keep your sneakers on be sure to Speak to us ahead of your tour for more specifics. The beaches are rough and rocky, but lined in pure white sand coveted by developers on Waikiki Seaside, whose shores are eroding. https://niihau-boat-tour66665.tribunablog.com/the-definitive-guide-to-snorkeling-niihau-island-49206867