Pećina Provalija (Abyss Cave), Nevesinje – 10 September 2026 The speleological rescue operation at Pećina Provalija (Abyss Cave), one of the largest cave systems in Bosnia and Herzegovina with more than 4,100 metres of explored passages, near Nevesinje, was successfully concluded at 16:00 (CEST) on 10 September. The accident occurred on the evening of 9 […]