The Adriatic Sea is the most indented section of the Mediterranean Sea on the continent of Europe. In its present shape, it was formed by the rising of the sea level by 96 metres following the last ice age in the Pleistocene period, when valleys and basins were submerged, and the dry land emerged as elongated islands, separated by sea channels. The Croatian Adriatic coastline is 1,777 km long and occupies most of the eastern Adriatic shoreline.
It is only 526 km from the most northerly to the most southerly point as the crow flies, but due to many bays and coves, it is among the three most indented shorelines in Europe. The elongated islands extend parallel to the shore, separated by channels, and counting the island shorelines as well, the total is 5,835 km, which is almost three-quarters of the total Adriatic shoreline.