Located on the island of Euboea, Eretria is one of the first major cities of Classical Greece, having emerged around 700 BC. This important site has been excavated on land since 1964 by generations of Swiss and Greek archaeologists. However, the city’s underwater remains has never been explored, starting with its port, now largely submerged. Yet, it is of great importance, as Eretria means “city of the rowers.”

5000 years ago, men built wooden villages on the shores of alpine lakes. These “pile-dwellings” were eventually abandoned, their remains quickly covered by sediments deposited by rising water levels. Isolated from the air, fragile material such as wood has remained intact, representing an incredible source of information on the way our very distant ancestors lived. Today, some archaeological sites could be threatened by the joint effects of natural erosion and human activities.

5000 years ago, men built wooden villages on the shores of alpine lakes. These “pile-dwellings” were eventually abandoned, their remains quickly covered by sediments deposited by rising water levels. Isolated from the air, fragile material such as wood has remained intact, representing an incredible source of information on the way our very distant ancestors lived. Today, some archaeological sites could be threatened by the joint effects of natural erosion and human activities.

Since Antiquity, the Swiss lakes have been central to transporting people and goods. Through the ages, many vessels were lost, some of which were buried under several meters of protective sediment. Now threatened by lake erosion, this Gallo-Roman shipwreck has recently reappeared and must be studied by scientists.

Since Antiquity, the Swiss lakes have been central to transporting people and goods. Through the ages, many vessels were lost, some of which were buried under several meters of protective sediment. Now threatened by lake erosion, this 16th-century shipwreck has recently reappeared and must be studied by scientists.

Since Antiquity, the Swiss lakes have been central to transporting people and goods. Through the ages, many vessels were lost, some of which were buried under several meters of protective sediment. Now threatened by lake erosion, this 18th-century shipwreck has recently reappeared and must be studied by scientists.