This is one of two special areas in Monster Hunter Tri which is only accessible through the arena or certain event quests. This particular arena is characterized by underwater fights (A new feature added in MH3). Leviathans are the only monster species that are available to fight here.
In both arenas there are special places to gather items, such as lifepowder. During arena quests, monster carves will give mega potions instead of normal monster drops.
|First Generation Areas|
|Battlefield | Castle Schrade | Forest and Hills | Fortress | Great Arena | Kokoto Village | Old Desert | Old Jungle | Old Swamp | Old Volcano|
|Second Generation Areas|
|Desert | Dondruma Village | Geyser Island | Gorge | Great Forest | Jungle | Moat Arena | Pokke Farm | Pokke Village | Sea of Trees | Arena | Snowy Mountains | Snowy Mountains Peak | Swamp | Tower | Volcano|
|Third Generation Areas|
|Deserted Island | Flooded Forest | Great Desert | Moga Farm | Moga Village | Mountain Forest | Land Arena | Loc Lac | Sandy Plains | Tundra | Volcano | Water Arena | Yukumo Village|