Remien Temple

Temple where the 3 Aeons Magus Sisters can be obtained in Final Fantasy X, this temple is hidden in the South end of the Calm Lands and can only be accessed via Chocobo. Belgemine is the protector of this temple. Not accessible on Final Fantasy X-2

Temple Aeon

 * Magus Sisters

Temple Trials
Battles with all other 7 Aeons will give you the Magus Sisters as an Aeon you can summon