Built in 2022-2023 in Bisbee, Arizona, this natural pool features our usual built-in biological filtration system which surrounds a central swimming area. The NSP is 52,000 gallons (1800 square feet), 6 feet deep, with an overall size of about 58' x 44'. Fun fact: During a particularly brutal summer heatwave, water temps in this natural pool reached as high as 86 degrees with no negative impacts on the plants, fish or the bio-filter!