If you're pregnant, have lately experienced medical procedures, or have back or neck accidents/troubles, this is NOT the trip in your case. Kids 4 and up are welcome. It might not be suggested if seasickness is prevalent as this, or other ailments, could induce stress or tiredness within the h2o. https://snorkeling-niihau-island67777.luwebs.com/35556578/niihau-boat-tour-an-overview