Dragon Palace Cave, also known as Ryugu-jo, is a famous limestone cave located in Kochi Prefecture, Japan. It features stunning rock formations, including stalactites and stalagmites, created over thousands of years. The cave is approximately 4 kilometers long, with a portion open to the public for exploration. Visitors to Dragon Palace Cave can enjoy guided tours that showcase its unique geological features and vibrant colors. The cave is also home to various species of bats and other wildlife, making it an interesting site for both nature lovers and adventure seekers.