The four-pearl Galgorm Resort & Spa has so many activities for adults, it feels almost like an upscale camp, ranging from horseback riding to archery. There are also three restaurants, a spa complex with an indoor pool and hot tub, and plenty of event spaces -- though there's no fitness center. Its 122 rooms range from woody Standard Rooms to quaint log cabin Cottages and urbane Suites. While few destinations have a similar array of amenities as Galgorm, travelers may also want to consider the Culloden Estate and Spa, a former 19th-century palace that offers guests a noble experience at lower room rates.