RMS ATLANTIS was a 125-foot-long (38-meter) supply vessel originally built in 1979. Her RMS designation is for Royal Mail Service, and she likely carried mail for the British Royal Mail, along with other supplies, out to offshore oil fields. She operated in the oil industry, likely for BP or some other British oil and gas company. She was ultimately deployed as an artificial reef on June 29, 2023. She currently sits upright on a sandy seabed at a depth of 80 feet (24.5 meters). The top of her wheelhouse reaches 52 feet (16 meters) putting her within reach of most recreational divers.