The Battle Frontier is a place in Hoenn that is a Theme Park for Pokemon Battles.
Battle Factory is located far left on the island. You go in and you are given a set of Pokemon that you chose 3 out of. If you win you can swap 1 of your Pokemon of 1 of your opponents. You don't get to see it's moves or stats.
Battle Tower has 4 rooms. Rooms with single battles, double battles, multi battles and pair battles. Single battles and Double battles are normal and like the others. Multi battles is when you go into a room and chose a partner and you battle with them.
Battle Arena is like a 3-3 no switching and only allowed 3 turns. If you don't knock out them out in 3 turns you get judged. You get judged on How much HP you have left, how offencive you where and how often you hit. If you have tied scores (2 for a win, 1 for a tie 0 for losing) both Pokemon will faint.
Battle Pike is based all on luck. You go into a room and something or nothing will happen to you. You could face a trainer, be in a room full of non-catch-able wild Pokemon or get a status condition doing on 1, 2 or 3 of your Pokemon.
Battle Dome is a 16 man tournament. You chose 3 Pokemon to enter with then 2 to battle with. You can view your opponent(s) before you battle them to decide what Pokemon to use.
Battle Pyramid is when you chose 3 Pokemon to take with you up a 7 floored pyramid. The catch is your Pokemon can't hold items when you enter, and you get your bag taken off you. You walk around this floor with trainers and Pokemon while you can only see a little part of your screen looking for a tiny blue square to move on. You get a special bag to use in here too.
Battle Palace is really weird. You don't get to chose your Pokemon's moves. Based on it's nature it will use defencive or offencive moves. All you can do is hope your Pokemon is do some damage for you!
In this island there is also a Pokemon Center and a Mart. There is also a special store where you use the BP that you win from the facilities. You can buy vitmins, dolls for secret bases and other cool items.
