If cruises aren't your thing, spending a few nights at the Hard Rock Hotel Riviera Maya (prices vary) could be the ideal family holiday for you. This all-inclusive resort south of Cancun provides plenty of relaxation for parents and excitement for the kids. Explore the property's many pools, white sand beach, and water park. You can drop the kids off at the kids' club, and teens even have their own designated space. Plus, if you visit before Dec. 20, 2019, and book your flight and resort stay together through Costco, you'll save $200.