 Item number bending. Temporary designation, SCP AQUA. Object class bending. Description. SCP AQUA is an underwater city populated by somewhat humanoid entities. These entities are hostile to the foundation and humanity. The entities inhabiting the city of SCP AQUA are designated SCP Mermaids. SCP Mermaids have weapons which may be able to destroy human civilization. As this anomaly has only been recently discovered, command is still formulating a defensive strategy.