In MountainClan territory there is a small river, that leads to a cave, the leads to an underground cavern in the mountains. The cavern floor is about two feet below extremely clear water for most of the time, meaning cats have to swim from one end of the cavern until they reach a much shallower part of the cavern. There are pillars of crystal, prism, diamond, jutting out from the ground. Kin cats touch their noses to these and fall asleep, like Moonstones, to talk to Heaven-Kin. Bother Healers and Co-Captains meet up here one night before full moon.