El Conquistador Resort, A Waldorf Astoria Resort

The honest review

If Puerto Rico's pitch to families is "Caribbean vacation, no passport required," El Conquistador is the resort built to prove it. Perched 300 feet above the Atlantic and Caribbean seas in Fajardo, on Puerto Rico's northeast corner, the property runs 677 rooms today with expansion to 750 planned for 2026, plus the kind of scale that smaller boutique hotels simply can't match: an 18-hole Arthur Hills golf course, a full marina running boat excursions, and — the real headline for families — exclusive access to Palomino, a private 100-acre island a short ferry ride offshore, with its own beaches and cabanas reserved for resort guests only.

The on-property water infrastructure is just as serious. Coqui Water Park is billed as Puerto Rico's only seaside waterpark, combining real slides with a lazy river, and both Palomino Island and the water park are included in the mandatory resort fee rather than sold as day-pass add-ons. For younger kids there's a dedicated children's play area and a children's buffet at mealtimes; older kids get a video game room. Because the resort sits across multiple elevation tiers connected by funicular, room location matters: Las Brisas and Las Vistas rooms up top get sweeping ocean views and private balconies, while La Marina rooms sit at water level near the boats and restaurants. Sizeable groups can book connecting rooms or family suites with a king bed plus sofa bed.

Honest tradeoffs: at 677+ rooms this is a genuinely large, busy resort, not an intimate boutique — expect crowds at the water park and pools during peak weeks, and the elevation/funicular layout means real walking (or waiting) between your room and the beach. Rates in the $270-400/night range are mid-to-upper for the island, and that's before excursions or the resort fee. For families who want the biggest single dose of Caribbean resort infrastructure Puerto Rico offers — private island included — El Conquistador is the clearest answer on the island.