Underwater archaeologists have discovered a 2,000-year-old Egyptian pleasure boat off the coast of Alexandria near the island of Antirhodos.

The vessel, over 115 feet long and 23 feet wide, featured a luxuriously decorated cabin and was propelled solely by oars, with Greek graffiti suggesting it was built in Alexandria in the first century AD.

This is the first discovery of its kind in Egypt, matching descriptions and depictions by ancient authors and mosaics.

The find offers new insights into the wealth, leisure, and waterways of Roman Egypt, complementing previous discoveries of statues, coins, and smaller boats in the area, CBS News has reported.

Alexandria, home to many ancient treasures, faces threats from climate change and rising sea levels, which could submerge a third of the city by 2050.