Mysterious Island (Tokyo DisneySea)

Mysterious Island is a "port-of-call" (themed land) at Tokyo DisneySea in the Tokyo Disney Resort. It features a large volcano and is located in the center of the park.
Theming.
Mysterious Island is a recreation of the fictitious one in Jules Verne's novel, "The Mysterious Island", which serves as Captain Nemo's lair. It is also known as Vulcania Island, as featured in the Disney movie "20,000 Leagues Under the Sea". When guests enter the area, they discover Nemo's secret base, complete with a harbor for his "Nautilus", as well as a lab inside the volcano, known as Mount Prometheus. Nemo is exploring the depths of the sea and of the earth, which allows guests to experience two of Verne's most famous adventures: "20,000 Leagues Under the Sea" and "Journey to the Center of the Earth".
Despite its name, Mysterious Island is not an actual island. It is instead built into the side of Mount Prometheus. This volcano is "active" (since bursts of fire can be seen escaping from the top, bursts of steam from cracks in its side, or bursts of water from the lake). The area has little greenery, and is mostly rocks and ornaments (as one can see it in the movie).