Some pools are just chlorine and water, a liquid playpen that, when combined with the intense summer sun, will cause the most exuberant of children to grow tired enough to take a nap. But then there are other pools that soak you in luxury, acting as therapy for the mind, a spa for the body. One of these is the pool at the Four Seasons Hotel in Las Colinas: lagoon-shaped, waterfalls cascading, attractive attendants who not only serve you frozen drinks to relax your spirit, but also frozen face cloths and ice water to brace yourself against the hot Texas summer. Of course, it comes at a price: You have to stay at the hotel, but the Four Seasons offers weekend packages for those who need to get away from home without ever leaving it. Parents of young children understand this need. Parents of young children are willing to pay this price. Parents of young children can be found poolside at the Four Seasons Hotel, without their young children.