We are staying onboard the ship, we may take the scooter we are renting down to get my mom's and I's passport stamped and buy a few souvinears but won't stay on the island very long.
I was looking at some link that was posted here on the DIS that tells you what ships will be in port the same day you are. We are VERY lucky we aren't on the cruise after ours. Nassau will have 17,000 people in port compared to about 4,000 on our cruise date.
Only two ships in Nassau ours and a Carnival Ship.