At 7.8 metres, Cave Cruzer is the only vessel of its size in Mercury Bay, small enough to navigate inside caves and blowholes larger boats cannot enter, open-topped so nothing blocks your view above. Between stops, Brian opens the throttle. You will cover 24 kilometres of protected Coromandel coastline at speed. Cave Cruzer goes inside the ancient blowholes and cave systems that line the route. Other boats do not. Cathedral Cove is the...