evidence: Peninsula of Bosnia and Herzegovina in Adriatic Sea From Wikipedia, the free encyclopedia Klek is a peninsula in the Adriatic Sea located southwest of Neum, Bosnia and Herzegovina. It encloses the Bay of Neum, separating it from the larger Bay of Mali Ston and the Pelješac peninsula.[1] At the cape of the peninsula, a few hundred meters from the shore, is a small islet as part of a reef consisting series of bare rocks appearing under the water table (Serbo-Croatian: hrid, hridina). It is called Lopata, and at the tip of the reef there is a lighthouse, also called Lopata. At the very tip of the peninsula, there is another lighthouse, called Rep Kleka.[2][3][4] The tip of the peninsula, known as Rep Kleka (also known as Ponta repa and Turski rep), that lies directly across the eponymous village of Klek in Croatia, is disputed between Bosnia and Herzegovina and Croatia; they last negotiated its status in the 1999 Neum Agreement.[5]