Agree that Curacao is a place to walk around- the Willemstad area- and that a bus tour of 3 hours or so is good for Aruba.
If one wants to go to the beach in Aruba, take a taxi to Palm Beach (high rise) or Eagle Beach.
If one wants to spend part of the day at the beach in Curacao- we went to Blue Bay before walking around Willemstad.
Be sure to ask your taxi driver to pick you up. Or one can stay nearer to the ship and go to the Hilton. E-mail hotels for details.
Agree also that Bonaire is a beach and snorkel area.