The Red Caves are caves made of red stone located in Sennon. It is a swampy area and can only be reached by boat.
|Spoilers from "Last of the Wilds"|
The Gull sent Emerahl to the Red Caves to meet some friends of his. When she got there, she was poisoned by a cup of water as a test. After she healed herself, they culprits revealed themselves as Surim and Tamun, more commonly known as the Twins. They told Emerahl that they had lived there for many years, hiding from the Circlians and their gods.