An Arena that first appeared in Monster Hunter Portable 3rd. It consists of a very narrow space compared to other Arenas, including previous iterations of small arenas, something which may increase the difficulty of dodging monsters. It is usually seen in Hotspring quests.
The fighting area consists of an opening on a canyon, you can see the desert which extends as far as the eyes can see, the base camp is a cave.
Being a narrow space, only the smallest monsters appear here, such as the Bird Wyvern leaders, Great Jaggi, Great Baggi, Great Wroggi and their minions, along with Bulldrome, Arzuros, Lagombi and Volvidon.