If you are looking for a great place for a family vacation in the Florida Keys, Hawk's Cay on Duck Key is a great place to stay in the Keys with kids. They have a great kids club, dolphin encounters, water sports, family size villas and a fun pirate pool for starters.
Oak Island, NC Lighthouse rented a house right beside it. The beach is gorgeous, secluded, and calm. We spotted dolphins from the beach almost every day we were there! The only drawback was that the waves were very calm, I like them rough! But it could have just been the time of year or the weather. Great beach, would love to live there someday!
Abama Golf and Spa resort - Canary Islands, Guia de Isora, Tenerife, Spain. Two Michelin-starred restaurants, seven swimming pools, spa, secluded beach. Whilst there....take long and winding road to northern village of Taganana, go dolphin spotting from Los Gigantes, view Mount Teide