The pace rule
The single biggest mistake families make: booking like they're traveling without kids. Two excursions a day, a different town every night, a 6 a.m. pickup after a red-eye — that's how you get a meltdown at a waterfall and a trip everyone wants to forget.
The rule: one activity per day max for under-6s, with real rest in the middle. A morning excursion, lunch, pool, done. Older kids can stretch to more, but the trip still needs unscheduled hours. Costa Rica rewards slow — the sloth sighting happens when you're not rushing to the next thing.
Mosquitoes: the permethrin protocol
In places like La Fortuna and Manuel Antonio, mosquitoes aren't a nuisance — they're the thing that decides whether your kid sleeps. For kids roughly 4 to 9, the protocol that actually works: treat their clothes with permethrin before the trip (it survives several washes), then use a kid-safe repellent on exposed skin each morning.
Pack both from home — don't count on finding the right products in a beach-town mini-market. Long sleeves at dusk, repellent reapplied after swimming, and treated pajamas do more than any gadget. October is buggy; go in prepared instead of miserable.
Car seats — bring your own
Rental agencies in Costa Rica will tell you they have car seats. What they have is often a stained, expired, wrong-size seat with a missing strap — or nothing at all when you land. If your child needs a seat at home, they need one here, and the roads here are less forgiving.
Bring your own. A lightweight travel seat or a backless booster for older kids fits in a duffel and removes the single biggest safety gamble of the trip. Install it yourself, check it twice, and don't accept "it's fine" from anyone at the counter.
Babies: the 4-month-old playbook
Yes, you can do Costa Rica with a 4-month-old — families do it constantly. The playbook: a resort or rental with a confirmed crib and high chair (confirmed in writing, before you fly), a carrier for excursions, and a home base you don't move from for at least four or five nights.
What to skip: long boat rides, hikes with river crossings, anything with a "minimum age" you'd have to argue about. What works: calm beaches in the morning, pool afternoons, wildlife you can see from a boardwalk or a shaded boat. The baby won't remember it; you will — so make it a trip you'd enjoy at half speed.
Teens: give them something real
Teens get bored in pretty places — a polished resort town with nice sidewalks and no adventure will lose them by day two. (Las Catalinas is beautiful, and it's exactly the kind of place a teenager will call boring.) The fix isn't more luxury; it's something with a pulse.
Give them the adventure menu: surf lessons, zipline, ATV or e-bike tours, a night wildlife walk, sportfishing. One real adrenaline item per trip resets a teen's whole attitude. Let them pick one excursion themselves — ownership kills boredom faster than any itinerary I could write.
Questions people ask
Do resorts provide cribs and high chairs?
Many do, but "many" isn't "yours." Confirm in writing before you fly — cribs especially can be first-come, first-served. "We'll figure it out" fails at 10 p.m. with a tired baby.
Are excursions okay for toddlers?
Some, at half speed. Calm boat tours, short wildlife walks, beach mornings — yes. Full-day hikes, long drives, anything with a minimum age — no. One activity per day, and bail cheerfully when they're done.
Where in Costa Rica is best with kids?
Uvita and Manuel Antonio are the family sweet spots: calmer beaches, wildlife everywhere, and excursions that don't require expedition fitness. Pair either with La Fortuna and you've got the classic family triangle.
