I just arrived in tulum yesterday and it's lovely but there's one thing that's really bumming me out and that's the agua mala or sea lice. Every time we swim we get itchy and my sister got a rash on her butt. Also the water is rather rough and seaweedy. Is this what we should expect all week? Our dream was to swim on lovely Caribbean water all day every day but we find we can't. We did Vieques last summer and never got out of the water all day. We are at the beach tulum which is very nice but if I can't swim in the ocean it will really ruin our vacation.