Did you know that there are real underwater cities hidden beneath oceans, lakes, and reservoirs around the world? Some of these cities were submerged due to natural disasters like floods, while others were intentionally flooded to make way for dams and reservoirs. These lost cities hold fascinating stories of history, culture, and mystery, making them incredible destinations for divers and history enthusiasts. Here are seven real cities that are completely underwater.
1. Shicheng, China (The Lion City)
Located beneath Qiandao Lake, Shicheng is an ancient city that dates back to the Eastern Han Dynasty (25-200 AD). It was intentionally flooded in 1959 for the construction of the Xin’an River Hydropower Station. Today, it remains incredibly well-preserved, with its stone architecture and carvings visible to divers.
2. Pavlopetri, Greece
Believed to be one of the oldest submerged cities in the world, Pavlopetri dates back to around 3000 BC. Located off the coast of southern Greece, this ancient city features roads, buildings, and tombs that remain intact underwater. Archaeologists have mapped out the ruins, offering a glimpse into early Greek civilization.
3. Port Royal, Jamaica

Once known as the “Wickedest City on Earth,” Port Royal was a thriving pirate hub in the 17th century. However, in 1692, a devastating earthquake and tsunami caused most of the city to sink into the sea. Today, the underwater ruins serve as a historic site and a diver’s paradise.
4. Baia, Italy
Often referred to as the “Las Vegas of Ancient Rome,” Baia was a luxurious Roman resort city that was submerged due to volcanic activity and rising sea levels. Many of its stunning marble statues, mosaics, and ancient ruins still remain underwater, attracting divers and researchers from around the world.
5. Dolchstein, Germany
Dolchstein was a medieval town that disappeared beneath a reservoir after a dam was built in the 20th century. During dry seasons, some of the structures reappear above water, making it an eerie yet fascinating site to explore.
6. Yonaguni, Japan

One of the most mysterious underwater sites, the Yonaguni Monument off the coast of Japan features massive stone structures that resemble pyramids and terraces. Some experts believe it to be an ancient civilization lost to rising sea levels, while others think it is a natural rock formation.
7. Villa Epecuén, Argentina
Once a popular lakeside resort town, Villa Epecuén was submerged in 1985 after a flood broke a dam. The town remained underwater for decades before the water receded, revealing eerie, decayed buildings that stand as a haunting reminder of its past.
Each of these underwater cities tells a unique story, offering glimpses into history, natural disasters, and human resilience. Whether you’re a diver, a history lover, or just fascinated by hidden places, these sunken cities remain some of the most intriguing destinations on Earth.