The no-taxi morning
Head out of the terminal and look for the Oranjestad streetcar: a free, open-sided trolley that loops from the cruise area along Main Street. Kids treat it like a ride at a fair, and it solves the "how far can little legs walk" problem before it starts. Hop off anywhere; it comes back around.
Two blocks off Main Street sits Fort Zoutman, Aruba's oldest building (1798), with the Willem III Tower beside it. The free Archaeological Museum nearby is air-conditioned and better with kids than its name suggests. Between stops, keep score of the bright blue lizards darting across every warm surface; they are everywhere once children start looking.
For lunch, grab a pastechi from a local snack bar, or sit down at Renaissance Marketplace on the harbor, where boats come and go and nobody minds a fidgety table.
If you want a beach: one short ride
Eagle Beach is about ten minutes from the pier by taxi (taxis charge flat government-set rates; confirm the fare before you get in). It is wide, calm, and home to Aruba's most photographed treasure, the fofoti trees that lean over the sand like they are pointing back at your ship. Public beach, free to use; bring or rent shade because the sun is stronger than the constant breeze admits.
The streetcar is free because Oranjestad wanted its main street to feel like it did a hundred years ago. Aruba is one of the only places in the Caribbean with one.
The two timing rules
Rule one: be walking back toward the ship an hour before all-aboard, not at all-aboard. The pier area gets busy in the last half hour, and a relaxed ice cream beats a sprint with a stroller.
Rule two: if you take the beach detour, agree on the return taxi before you settle in. Taxis are easy to find at Eagle Beach, but "easy" and "instant" are different things with a tired toddler.
Make the port day a game
A handful of Buska's 75 treasures sit within the walkable loop: the streetcar, the fort, the lizards, the pastechi, and more. Kids photograph each find, the card fills with their picture, and a few hours in port quietly becomes the day they still talk about at dinner on the ship.
Treasures mentioned in this guide
Oranjestad StreetcarFree, open-sided, and it loops right back.
Fort ZoutmanAruba's oldest building, two blocks off Main Street.
PastechiThe lunch that costs a few florins and wins the day.
One port day, a whole treasure hunt
Buska gives kids 75 real Aruban treasures to find and photograph, indoors and out, and turns the trip into a keepsake book. Free to start, no ads, private by default.