That is a barefoot tour - if you'll want to maintain your shoes on be sure to Call us right before your tour For additional specifics. A normal whale observe is two hours. This can most likely be prolonged to include snorkeling or a visit to your popular “Kipu Kai” https://snorkeling-niihau-island44443.ampblogs.com/5-essential-elements-for-niihau-boat-tour-71542507