splav

1. (on a river, in a city) floating club; floating restaurant
   Subotom idemo na splav na Savi. — On Saturdays we go to a floating club on the Sava.
   Ručali smo na splavu kod Zemuna. — We had lunch at a river restaurant near Zemun.
2. raft
   Deca su napravila splav od dasaka. — The kids built a raft out of planks.

In Belgrade «splav» most often means a club or restaurant on the river; people say «ići na splav».