The sentence is rather unnatural. "Hanging around" a town suggests just being there with absolutely no purpose, like teenagers do in some city centres. Given that the film Castaway was set on a desert island, I can't see any way that one could re-enact the film in a town.
May I ask if your member profile information is correct? It states you are a native English speaker from the United States and that you are currently located in the United States, but gives your status as far as the English language is concerned as "Student or learner". There were errors in your original post which suggest that perhaps some part of your profile is incorrect.
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