If you’ve ever wondered what Valletta looks like underground, you can now do so for less than the price of a sandwich.

Ticket prices to Valletta 2018 exhibition Dal-Baħar Madwarna have been cut to €3 for adults and €2 for children as the contemporary art exhibition enters its final weeks before closing.

The two remaining parts of the exhibition include a sound installation within an underground cistern by the law courts. The sound installation, Who By Fire, is the work of Turner Prize-winning artist Susan Philipsz and refers to a damaged naval bell at the National War Museum in Fort St Elmo.

Valletta’s underground cisterns were built by the Knights of St John and used for hundreds of years as water reservoirs before being used as underground shelters during World War II air raids.

The exhibition also features a large-scale installation at the Pixkerija, titled A Straight Line Through the Carcass of History.

A physical line made of meshes, the installation is the work of Ibrahim Mahama, a Ghanaian artist based in Accra. It seeks to highlight the working history of the old fish market, its uncertain future and the Mediterranean Sea as a symbol of trading between Africa and Europe.

The exhibition is open from Tuesday to Sunday between 11am and 7pm. Tickets may be purchased from the ticket booth opposite the Law Courts or by visiting tickets.valletta2018.org. It will end on July 1.