The two toddler beaches
Baby Beach earned its name: a sheltered half-moon lagoon at the southern tip where the water stays knee-deep a long way out. Mornings are calmest. Bring water shoes for the few rocky patches, and shade, because there is little natural cover. Eagle Beach is the other winner: huge, flat, soft, with gentle water and room to nap under a rented palapa.
The attractions that actually land under five
The Butterfly Farm might be the single best toddler attraction on the island: a netted garden where butterflies land on shoulders and hats, with guides who are wonderful with small kids. The Donkey Sanctuary lets little ones help feed gentle rescued donkeys. The Ostrich Farm is a short guided visit with an animal so absurdly big that two-year-olds talk about it for weeks. And a Dutch pancake the size of a wheel solves at least one dinner.
Aruba's tap water comes from the sea! The island turns saltwater into some of the cleanest drinking water in the world, so you can fill your bottle anywhere.
The logistics that make it easy
Nothing is far: the whole tourist half of the island fits inside a 20-minute drive, so car naps actually work as naps. Tap water is safe everywhere, US plugs fit, US dollars are accepted, and pharmacies are well stocked. The constant trade wind is the one trap: it makes the sun feel gentle while it burns. Rash guards, hats, and stubborn reapplication are the whole game.
What to skip until they are bigger
Skip the Natural Pool (a bouncing 4x4 ride and slippery rock), the caves, and the north coast generally; the currents there are no place for small children. None of it goes anywhere; it will still be here for the trip when they are eight.
A note on Buska with a toddler
Honestly: Buska's youngest tier, Li'l Explorers, is designed for ages 4 to 7. Under four, the game becomes a parent holding the phone while a small person points at a lizard, which, it turns out, is still a pretty good game. The photos still land in the family album, and the keepsake book at the end does not care who pressed the button.
Treasures mentioned in this guide
Baby BeachA shallow lagoon literally named for babies.
The Butterfly FarmButterflies land on toddlers. Magic, guaranteed.
Donkey SanctuaryFeed a rescued donkey; runs on donations.
Their first island, kept
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.