i'm not trying to be sarcastic, but you might also chose to learn a wee bit more about Belize
I'm thinking it wasnt a typo, and that you think it's called "ambergris cayo" since you typed it twice? If it's a typo - my sincerest apologies!
if it's not:
There are several districts in the country of belize. Ambergris Caye is an island off the coast of the mainland of belize, and Cayo is a district in the western mountainous region of the country. Both are equally lovely, but you might wish to chose which area you'd like to work in first.