A Sundeck, also known as a Sunshelf or Tanning ledge, is a shallow, elevated platform built into a swimming pool, typically submerged under 6 to 9 inches of water. It provides a versatile, comfortable space for lounging, sunbathing, and socializing while staying partially immersed in cool water. This feature is ideal for relaxing without full submersion, making it popular for families as a safer play area for children and non-swimmers. Sun shelves can also accommodate lounge chairs and umbrellas, creating a resort-like poolside experience. They enhance pool accessibility, provide aesthetic appeal, and serve as a multifunctional area for relaxation and low-impact activities.