Vrelo Bune is a natural and architectural ensemble located at the spring of the Buna River near Blagaj, a village-town, and is part of the wider "Townscape ensemble of the town of Blagaj — Historical and Natural Heritage of Bosnia and Herzegovina", situated southeast of Mostar, Bosnia and Herzegovina. The primary rationale behind the decision of the KONS to designate the site as protected and thus include it in the protected area of Blagaj as a historic urban area, lies in the harmonious coexistence of natural and architectural, cultural, and historical elements, as evidenced by the "distinctive quality of the coexistence of the natural and the man-made" and the "integration of the physical structure into the landscape".

Blagaj is a historic village and protected heritage site in Bosnia and Herzegovina. It is located in the south-eastern region of the Mostar basin, in the Herzegovina-Neretva Canton. It stands at the edge of Bišće plain and is one of the most valuable mixed urban and rural built environments in Bosnia and Herzegovina, distinguished from other similar built environments in its urban layout. Blagaj was most likely named for its mild weather patterns since blaga in Serbo-Croatian means "mild". Blagaj is situated at the spring of the Buna river and a historical tekija. The Blagaj Tekija was built around 1520, with elements of Ottoman architecture and Mediterranean style and is considered a national monument. Blagaj Tekke is a monastery built for the Dervish.