3. Ada Ciganlija
Ada Ciganlija, the next one on the list of fun, awesome things to do in Belgrade is a Sava river’s island turned into a peninsula. It is a very popular place especially during summer, where you can do many activities, mostly sports. There are many bike paths, tennis and beach volleyball courts, football fields, mini golf course, paintball field, and skateboard ramps. There are also many water activities available, apart from the beach there are water slides and rowing clubs. Apart from these activities, there are a lot of nice bars on the river beach where you can rest and grab a drink after a hot summer day.