Saturday PETA protested outside the water park in San Antonio,Texas and flew a banner in the sky that read, 'Let Orcas out of prison.'
Members are protesting the death of killer whale trainer Dawn Brancheau at SeaWorld in Orlando, Florida.
Brancheau was killed after 'Tilikum', the killer whale, attacked her during a show.
PETA wants SeaWorld San Antonio to release 'Tilly' from the Texas park. Members believe the whale should be in a sanctuary and they want people to appreciate the whales in the wild.
SeaWorld San Antonio had no comment.