HGTV's "Love It or List It" co-host, Hilary Farr, has a relaxing backyard perfect for entertaining. The centerpiece of her yard is a saltwater plunge pool at the edge of the patio.

Hilary Farr's plunge pool proves that you don't always need a big pool to make a major impact. Plunge pools are typically 6.5 to 10 feet wide and 10 to 22 feet long.

Smaller pools offer pure relaxation, making them ideal for cooling off and doing water aerobics or standing workouts. If heated, it can also serve as a personal sauna or hot tub.

Plunge pools are great for smaller yards or a budget-friendly outdoor renovation. Costs can range between $7,000 and $12,000 depending on the type of pool, size, and material.

Plunge pools can easily be customized in terms of shape and design. The saltwater pool in Farr's backyard provides the perfect location for relaxation and entertainment.