The Catlins Cathedral Caves' are one of the thirty longest sea caves in the world,located on Waipati Beach, 15 km south of Papatowai, on the Catlins Coast in SE corner of the South Island, New Zealand. They are a 'must see' - being one of the most popular tourist attractions in the area, along with the McLean Falls, the highest water falls in the Catlins, located 4900m away. The two main cave systems join together within the cliff and one has a 30 m (100 ft) high ceiling.