My husband and I will be staying at the St. Regis at the end of March and are looking into Captain Sundown's boat tour of the coast. My concern is getting seasick. How rough is the water this time of year? Would it be better to do a short hike into the coast? If so any recommendations? Thanks. This is my first trip to Kauai and I really want to experience the coast, but do not want to get seasick.