Oh yes one extra thing if you do make it to Walker Cay do not go swimming in the sea. Do not go in up to your waist or even your ankles without being very alert and on the look out for sharks.
Some idiots [ look like divers to me ] have been hand feeding bull sharks from the shore.
Any wonder there are regular shark attacks in the Bahamas. Like this one in August this year. Largo man at Tampa General after shark attack in Bahamas | Tampa Bay Times