The Ombla river, near Dubrovnik, Croatia, is only 30 meters long but has many characteristics of a t
The Ombla river, near Dubrovnik, Croatia, is only 30 meters long but has many characteristics of a true river. The river rises as a karst spring fed by groundwater inside a large cave at the foot of a 400-meter massif. The watercourse then flows for approximately 30 meters before reaching a weir across which the Ombla discharges into the Adriatic Sea. Despite having a short route, the Ombla river has a huge drainage basin of at least 600 square kilometers and up to 900 square kilometers between the Adriatic Sea coast in the area of Dubrovnik and Popovo Polje. More than 50,000 people live in this region. The Ombla river also supplies the residents of Dubrovnik with drinking water -- source link
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