Mosquito nets are overkill as there aren't any or many from what I found. We went in Nov to Concordia and I was bit beyond belief by the noseeums, unlike other visits, all over my legs but nowhere else. Many women I met had the same problem but not the guys! And I don't wear fragrances of any kind, went through a full spray bottle of deep woods Off, but still got bit. Ah well, the price we pay for paradise! (The tents have good screens but the floor board do let the noseeums in, despite constant sweeping of the sand out of the tent.)