Akaroa Harbour formed as a result of an extinct volcanic crater being flooded by the Pacific Ocean. It's a beautiful place with sheer cliffs and the picturesque township of Akaroa at its heart. New Zealand's only native dolphin, Hectors dolphin, makes this sheltered harbour its home and its here you can take a 2 ½ tour to see and if you wish actually swim with these incredible creatures. Following a ½ hour briefing you depart on a 2 hour cruise of which around 1 hour is spent in the water with the dolphins. Black Cat Cruises has been operating since 1985 and their success rate at sighting dolphins is over 98%. Swimming with dolphins is not always possible either due to sea conditions, the dolphins' willingness to stay and play and other environmental reasons such as not swimming when there are babies around. They still manage to swim though on over 80% of their tours. All equipment is provided and all you need to bring along is your swimming costume and a towel.