Anatakitaki Cave, located in the northeast of Aitu Island in the Cook Islands, is a stunning karst limestone cave with spectacular stalactites and stalagmites, and a clear freshwater lake inside the cave. ​This is the habitat of Aitu's unique Kopeka birds, which fly in the dark through echolocation, which is breathtaking. ​Tourists can explore the wonderful landscape of the cave under the guidance of a guide through the dense rainforest and enjoy the cool pool of the underground lake by candlelight. ​This is an unforgettable adventure that combines natural wonders with unique ecology.