I'm gonna keep the Gatheringplace as a cave, I think. It feels like a nice neutral location. The cave is always a little damp, and slants downwards the farther you go. As you go deeper, there is a sudden stop and the terrain flattens out again, for the most part, for a way before a pool of water. Warriors and apprentices can sit on the ledge. In the water are several stepping stones leading up to a large rock where leaders can sit. The cave is full of various mosses, fungi, lichen, and ferns. Some salamanders and small fish live in the pool. There is a large hole in the top of the cave, in which the moonlight can stream through and reflect off the water. This also allows the cats to see if StarClan is angry.
Art never I fear...