The picture you see on the left is our small backyard pool. Hubby and I love spending a few minutes in the hot tub before going in the swimming pool. The hot water soothes our tired muscles and helps alleviate our back pains and shoulder pains. In fact, one of the things we enjoy about going to 24 Hr Fitness is their whirlpool.
Some houses have bigger hot tubs. Some have it indoors and others, have it outdoors. Some put hot tub covers to protect the water inside the tub from such elements as insects, rodents, dirt or simply to provide insulation, thus, retaining the water temperature longer, which helps in energy conservation.