During the Fish Fest, which will take place from 3rd to 6th September 2015, near Nebojsa Tower , visitors will have the opportunity to visit Nebojša Tower and the Big Powder Magazine with 50 % discount. During the four days of the Festival, which is held for the ninth time in Belgrade, tickets for Nebojša Tower and the Big Powder Magazine will be 100 dinars.

The first 50 visitors will receive a free ticket for the newly opened Military bunker in the Upper Town of belgrade Fortress.

The facilities are open daily from 11am to 7pm.