The arena was a public venue in Claremont owned by Dominik Bombastus Houvenaghel, Leo Bonhart's cousin. Ciri was forced to participate in exhibition combat there while she was imprisoned by the bounty hunter.
After being reunited with Geralt and Yennefer, Ciri went back to Claremont and burned the arena to the ground.
In the past the amphitheater was used as a temple.