Grabovica valley with small Grabovica creek is a special reserve within park, squeezed deep into the mountain, and form a deep canyon between steep cliffs of Čvrsnica mountain.
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To the North - North-West is Vran mountain with its highest peak on 2.074 meters a.s.l. while on the South - South-East is Čvrsnica mountain with its highest peak Ploča at 2.228 meters a.s.l., South is Čabulja mountain with its highest peak at 1.786 meters a.s.l., in the North - North-East is the Doljanka river and in the East is Grabovica valley that stretches to the Neretva river.
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There is also a Franciscan monastery that is located within the park and open to visitors.
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The large necropolis at Dugo Polje indicates that the waves of Slavs that came in the 7th century also made this area their home.
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Within the valley is a small village Diva Grabovica, named after a daughter of a local shepherd, and killed by a local nobleman so that she would not be married to another man, except for him.