With kids aged 2–4, you need an all-inclusive where the toddler infrastructure is actually thoughtful and the beach doesn't require a 20-minute walk. Beaches Turks & Caicos and Hyatt Ziva Cap Cana both nail this—Sesame Street theming and a built-for-toddlers water park at Beaches; a dedicated splash zone and quieter location at Cap Cana. Both include stroller-friendly layouts and kids' clubs that actually separate by age, not just herd everyone together. You're paying full freight for these, so they'd better have the logistics right—and they do. If you want to dodge crowds and Caribbean hurricane season, Turks & Caicos is the safer bet. Cap Cana works if you're okay with Dominican Republic and want to save a few hundred dollars.