www.hawaii-aloha.com – Whale Watching with Atlantis Navatek Cruises enthusiasts enjoy a 2 ½ hour cruise aboard 140-foot Navatek, with state-of-the-art SWATH technology providing a comfortable and stable ride. With its sleek design and engineering, it’s the only vessel that can actually cruise past Diamond Head or other areas in search of humpback whales. Outdoor viewing decks and large windows in the air-conditioned cabins provide for wonderful sighting opportunities and views. Truly a dedicated whale watching experience, our expert naturalist shares insightful information and educational commentary on the humpback whale’s behavior and biology.