Tsunaku's Talon
The five mountains Tsunaku transmutes off a desert coast. Two of the peaks are coastal. The most inland peak is the tallest and homes a silver dragon. The water running off from the 5 peaks collects into 4 rivers that then empty into a central lake before overflowing down a final river to the ocean. Due to the area effect limit of Tsunaku's magic, the coastal mountains and the lake float above the seafloor.