Jamestown, the birthplace of Accra is directly east of the Korle Lagoon. Jamestown and Ussher town are the oldest districts in the city of Accra and emerged as communities around the 17th century.
These districts, both of which constitute Old Accra or Ga were heavily developed by the end of the 19th century, and following the rapid growth of the city during the 20th century, they became areas of a dense mixture of commercial and residential use. Today, both Jamestown and Ussher town remain fishing communities inhabited primarily by the Gas. The original Jamestown Lighthouse, built by the British at James Fort in 1871, was replaced in the 1930s by the current Accra Lighthouse, which is 93 ft (28 m) tall with a visibility of 16 nautical miles (30 km).