I will be staying on Turneffe Atoll middle of May and am wondering what type of clothing is appropriate (warmth, insect protection, etc.) for casual evening wear. I do not want to bring sun dresses and shorts if one's legs need to be covered or if the temperatures are too cool.

This is obviously my first trip to Belize.

I would appreciate any advise, help on what to bring and what to leave at home.

Thanks!