More work on the flooded caverns. Its built on 4 base plates, 1 32x32, 2 24x40 and 1 16x24 (all sizes in pegs).
The walls are going to be 6 blocks high since any more and its just throwing blocks at it to make it taller. a mini-fig is about 4 blocks high so this gives a good sense of ceiling height so far.
Its calibrated so that each space is a 4x4 like on the Lego chess sets. This gives enough room to pose and position minifigs without kncoking things over or crowding each other out.