I travelled in the Caribbean (Windward Islands -- Antilles et al). Though the native girls and young women wear the shortest mini skirts I ever saw -- please don't do it yourself. Covering your legs with long(er) skirts or loose pants saves you a lot of staring from the local men!
Marion, Hamburg, Germany

I spent a month on Carriacou in Grenada. I wish that I had taken a skirt for shopping in the village and long pants to ward off the mosquitoes in the evenings. Women in Grenada dress very conservatively.
Pam, Portland, OR, USA

Dress conservatively, as opposed to the rest of Polynesia. In the Samoas and Tonga the women never wear pants, shorts, tank tops or bathing suits. Instead opt for Mu-Mu dresses or skirts and dresses that cover the thighs and upper arms. I wore an old cotton shift or pareo over my bathing suit when snorkeling. The local people appreciate and respect you for your consideration of their culture. At a resort area or compound you could dress differently without offending.
Johanna, Atascadero, California