Captain Arturo Prat Base (Spanish: Base Naval Antártica "Arturo Prat") is a Chilean Antarctic research station located at Iquique Cove, Greenwich Island in the South Shetland Islands, Antarctica.

There have been plans to reopen the station for permanent occupation starting March 2008.

The base is named for Captain Arturo Prat, a Chilean naval officer.

The climate is maritime polar (Köppen: ET), being on the coast of the peninsula with less severe averages than expected in Antarctica.

[3][4] Extreme temperatures can reach −29 °C or −20.2 °F in July, which is still quite bearable to humans protected due to considerable moderation of the sea, and a rare heat wave caused the temperature to reach 19 °C or 66.2 °F, a relatively high value.