Our suggestion: Lazy L&B Ranch, Dubois, Wyo. Guests stay in log cabins and spend their days riding horses and communing with goats at the petting zoo. You'll love: Singing cowboy songs by the fireplace. lazylb.com, six-night package with all meals and activities from $1,475, kids 12 and under from $1,325.
SKI RESORT IN SUMMER
Our suggestion: Keystone, Colo. Rafting, fly-fishing, hiking—this winter destination is teeming with summer activities. You'll love: River Run Village's one- to four-bedroom condos are just a three-minute walk from the town's shops and restaurants. keystoneresort.com, one-bedrooms from $129 a night.
OLD-TIMEY LAKE TOWN
Our suggestion: Mackinac Island, Mich. At this car-free getaway on Lake Huron, the activities haven't changed much over the years: biking, swimming, and eating ice cream. You'll love: The suites and cottages to suit groups of any size at Harbour View Inn. harbourviewinn.com, doubles from $149 a night in summer.
Our suggestion: Sullivan's Island, S.C. Gentle waves and the occasional dolphin offshore make this beach a favorite with kids. You'll love: The wide range of cottages and houses that you can book through local agents at Island Realty. islandrealty.com, two-bedroom cottages from $1,300 a week.
Our suggestion: Walt Disney World. With six parks and a dizzying array of places to shop, eat, golf, and swim, Florida's mammoth complex is the ultimate crowd-pleaser. You'll love: Disney's Saratoga Springs Resort & Spa, where nine people can stay in a tree house. disneyworld.com, from $555 a night.
Our suggestion: Wisconsin Dells. The "Waterpark Capital of the World" has 21 water parks, along with dry-land activities like mini golf and rock climbing. You'll love: With an arcade, a cinema, and a paint-your-own-pottery studio, Kalahari Resort is a hit with kids. kalahariresorts.com/wi, doubles from $130 a night.
Our suggestion: Royal Caribbean's Oasis of the Seas. The 2,706 staterooms run the gamut from twin cabins to family suites to swanky lofts. You'll love: "Central Park," an open-air atrium with more than 12,000 trees and plants. oasisoftheseas.com, seven nights from $729 per person.
Our suggestion: Occidental Grand Xcaret, Riviera Maya, Mexico. The resort has a seemingly endless number of rooms (769), restaurants (11), bars (10), and pools (15). You'll love: Guests get discounted admission to swim with dolphins. occidentalhotels.com, from $107 per person per night.