Cave Cruzer exploring the Mercury Bay coastline, Whitianga to Hot Water Beach & surrounding Islands. Visit Orua cave, New Zealand's 2nd largest sea cave on the only tour boat playing music to experience the acoustic sounds. The Cave Cruzer is the largest safest vessel with no roof able to navigate inside the small caves & blowholes so you can be completely immersed. Get up close to the volcanic pinnacles & majestic scenery. Holding a Marine mammal watch permit means spending time with Dolphins, Orca, Whales, Seals etc when we come across them. Book your tour & let Cave Cruzer help you create the highlight of your holiday!