Most of the hotels and resorts which are the perfect places for relaxation, recuperation, fitness, and vacation are equipped with pools and spas. These pools and spas, which are of different sizes and different types, are the main features of the hotels and resorts. During the process of design and construction, people should abide by relevant standards in order to guarantee the pool and spa’s functionality and safety. And at the same time people should also consider to make them beautiful and harmony with the surroundings, which can make their existence natural and comfortable.