I'm going to be at Banana Beach for the first weeks of September, but I've heard alot of conflicting reports about it on this message board. Some people make it sound like it's the worst thing on a beach since beached whales, and other people make it sound like it's no big deal. How bad IS it?

Does it make swimming impossible? Does it wrap around your ankles so bad that you can barely walk? Or is it just a very slight annoyance that will only bother you if you let it?

Any thoughts?
Muchos Gracias <--- (that's about the only Spanish I know...)