...cause that's where people fish- off the old wharf, so you NEVER swim where people are fishing. That's just plain stupid.
I try to abide by that rule here myself. We have piranhas in our rivers and eels and what not, so whenever I see people fishing I'll try not to go swimming there.
Suriname also has sharks, but I think at the coast. Not really inland where the swimming places usually are, so I haven't seen a shark yet in Suriname.