We just got to fall, but if you’re planning on a spring break trip, it’s not too early to start planning. In fact, if you want to secure enough space for the whole family at these premium resorts, you ought to book early. With a limited window of time and high demand, these family friendly places will fill up faster than you think.

St. Lucia

Water sports are a hit at Anse Chastanet on the island’s west coast. The snorkeling and SCUBA diving are excellent, and easy to use kayaks are complimentary in the water sports center. For more experienced kayakers, prijon kayaks with rudders and carbon fiber paddles are also available. In the shadow of the pitons, Sugar Beach is a great base for hikers, and two kids clubs ensure no matter their age, your kids will have a great time. The sugar club is for 4- to 12-year-olds, while the spice club caters to tweens and teens. There’s even babysitting for babies and toddlers.

Antigua

With two beaches, there’s one dedicated to activity and one for quiet solitude at Curtain Bluff. Bay Beach is buzzing, with a cafe and bar, and a barbecue every Wednesday afternoon. At the back of the beach, there’s a pool, basketball court, bocce ball and shuffleboard. Surf Beach features hammocks and little else, so parents can escape while the kids play. There’s a shaded sandbox and jungle gym for little kids and a game room full of movies, video games and board games.

Turks & Caicos

With a water park, 10 pools and pristine Grace Bay Beach, you can spend all day in the water and never run out of things to do at Beaches. There is plenty else to do, though, with beach volleyball, tennis, table tennis, croquet and basketball available, just to name a few. There are Sesame Street characters, a club for teens and entertainment all day and night. Kids of all ages can take a break from all that sun in the XBox lounge. The resort is all-inclusive, and no one will go hungry with more than 20 eateries to choose from.

The Bahamas

Atlantis is a mecca of family fun, and there is literally something for everyone. There are many options for accommodations, with villas and penthouses to pack the whole family in. There’s an adults only pool for guests of the adults only Cove if part of the family wants some alone time. There’s Dolphin Cay. There’s a water slide through a shark tank. There’s even a kids concierge. Once the kids are off to bed, there’s a casino and sports book. There’s a restaurant for every taste. Simply put, Atlantis is a one-stop vacation paradise. Fitting that it’s on Paradise Island.

Nevis

It’s a relatively quiet island as far as the Caribbean goes, playing little sister to St. Kitts. But the Four Seasons Resort Nevis makes the island a perfect destination for families. The Sea Turtle Conservancy offers educational activities as part of the Kids For All Seasons program for children ages 3-9. Sand castle molds makes it easy to have a friendly competition to see who can build the most regal castle, with a gelato bike making the rounds to make sure everyone has all the fuel they need.