Wild Dunes Resort, located a half-hour drive from Charleston, SC, offers families a raftload of sand-and-surf activities, from golf, tennis, and watersports to eco-tours and a top-notch kids program (think kite-making, marsh exploration and black-light dodgeball). Better yet, along with sand, sun, and nature, Wild Dunes is offering some serious discounts on a summer vacation.

Now through September 3, the longer you stay, the less you’ll pay with the “Stay More, Save More” promotion.  Book by May 31 and save on rates that start at $185 per night. A sliding discount scale will get you anywhere from a 20% discount on a two-night stay to a whopping 40% off a seven-night stay. When we priced a four-night stay in July for a family of two adults and two kids, we found a rate of $188 for a deluxe room (regularly $269) and $237 for a one-bedroom suite (regularly $339), which translates to a nice 30% savings.  Got some lead time?  If you book at least 30 days in advance of a four-night minimum stay, you’ll also get a $100 dining credit to use at any of the resort’s five restaurants.