collyk is right, just make sure your US$'s are not ripped or torn or have markings on them. I always carry lots of $1's, $5's, $10's and $20's along with some $50 and $100's stashed away. In my many trips I have had to use the ATM only once. All the houses, condo's and hotels have safes for you to use. Only take what you intend to spend daily. I always have just one credit card, drivers licenses and passport. Enjoy, enjoy enjoy!!