The Big Mango is a ten-metre roadside monument outside the visitor centre, and it is exactly as silly as it sounds. Bowen can get away with it because mangoes are part of the town's identity: the Kensington Pride mango was first grown commercially here, and the district still sends fruit around Australia.
Stop for the photo, get local advice at the visitor centre, then keep going into town. The mango is the joke; Bowen's beaches are the reason to stay longer.