The world's largest swimming pool

Yesterday, the British Guinness Records Committee recorded this swimming pool located by the Chilean coast as the world's largest swimming pool. The width of this swimming pool is about 940 meters, the area is 80,000 square meters, which is equivalent to the size of 10 football fields. The deepest point reaches 40 meters. It took five years to build this pool and spent 1 billion pounds. And its annual maintenance cost reached 2 million pounds. Just thinking of the situation in domestic swimming pools where it's packed like dumplings, I feel unbalanced...