User blog comment:PitchBlack696/Blog: Admins Board/@comment-6050823-20131029023339/@comment-6050823-20131029223326

Here they are.

千剣山(The area Dara Amadyura is fought in)

禁足地(The area Shagaru Magara is fought in)

溶岩島(The area Akantor and C. Fatalis are fought in)

遺跡平原(Ruins Fields)

未知の樹海(Unknown Sea of Trees)

地底火山(Underground Volcano)

天空山(Heavenly Mountains)

地底洞窟(Underground Caves)

氷海(Frozen Sea)

原生林(Primeval Forest)

Has name of the arenas