There is an international airport on Cayo Coco; one can drive from the mainland across the causeway toll payable; and there is a marina on Cayo Guillermo.
[Note until 2008, Cubans were only allowed in with specific authorisation - for example workers in the hotel, on business, married to a foreigner or with a letter from the local police. Following relaxation of the restrictions, any Cuban can enter with the payment of a fee.]