Are the best way to explore the magical Napali Coast. Zodiac tours, catamaran cruises, and, leave from Hanalei Lihue, Poipu and Port Allen. Five-hour combination snorkel and sightseeing excursions of our ancient Na Pali coastline are popular. You should reserve tours early as they fill up fast. You can book Napali Coast Boat Tours online. Vessel choices vary with the seasons and include Power Cats and Full Sail Catamarans, with passenger counts of 12 to 50. Winter months are limited to the larger boats for open water off shore Humpback Whale watchng tours. The Humpback whales are normally visible in our waters, from late December to late March.