The Bay of St Bartholomew is located only a few tens meters from the Slovenian-Italian border. It is extremely shallow; the water does not exceed the depth of three meters.
There is a popular natural grass beach, which attracts mainly environmentally conscious guests.
There have always been favorable conditions for aquaculture. Today in the bay, there is a mussel farm; in the past, however there were two port piers and perhaps even a Villa rustica, as evidenced by the remains of ancient settlement found on land and in the sea, and the foundations of two sets of antique structures in the sea. Some experts believe that an ancient fish farm might have existed in this place.