Volcanic Island (Pikmin 4 (BallsAngus version))
From Pikmin Fanon
This is an area in Pikmin: The Huge Debt and Pikmin 4 (Wii U). It is actually near the side of a volcano that is almost never inactive. It has pools of lava that kill all pikmin (except Red Pikmin) instantly. When the volcano is inactive the pools of lava disappear. Also there is a 1/20 chance it will have an Ash storm here.
Caves
Pikmin
None (Pikmin: The Huge Debt)
Orange, Green (Pikmin 4 (Wii U))