With toddlers this young, you need an all-inclusive where the kids' infrastructure actually works and parents can breathe. Hyatt Ziva Cap Cana and Nickelodeon Punta Cana both nail the essentials: dedicated splash zones for the under-5 crowd, on-site kids clubs that'll take them for a few hours, and enough pools that you're not fighting crowds. Cap Cana's gated feel means fewer rowdy spring-breakers; Nickelodeon throws in character moments and gear like free strollers and bottle warmers that matter with this age group. Either way, you're paying for peace as much as pools.