Consider it taken.
Also, may I recommend the Volcano Bowels?
Volcano Bowels (Indoor. Advanced Arena for Indoor Battles): An advanced level arena, not recommended for novice referees or trainers. The referee must have the permission of both of the trainers to use this arena unless the referee is a League Official. The crater of a Volcano, deep down in the ground, with the exit to the sky an almost unreachable distance above and Boiling Lava in the pit beneath. Very dangerous for both Trainers & their PokÃ©mon if they are not careful. There must be a platform for the PokÃ©mon to battle on or failing that a number of pillars, unless all PokÃ©mon competing in the battle are flying types.
Special Rules: Deadly, Stone Pillars, Suspended Platform (One of Stone Pillars or Suspended Platform required if match is not all flying types), Weather (Heat Wave) (Due to the extreme Heat from the Lava)
Optional Special Rules: May not use Battle Platforms, Fire Sprinklers, Grandstand, Stadium, Terrain Edge (Any). If the referee wishes to have the arena exposed to outside, simply use the Volcano Peak arena instead.