In Kaštel Sućurac stands the oldest defensive fortress built in 1392 by A. Gvaldo the archbishop of Split to protect peasants from the settlement Putalj which was situated on the slopes of Kozjak, near the little church of St. Juraj. Additional building formed a settlement by the sea.
Kaštel Sućurac is the starting point of a marked mountain trail, which leads to Vela stina, the mountain house Putalj (480m), along a path to the Vrata saddle on the ridge of Kozjak and farther westbound over a plateau to the church of St. Luka (690 m).