San Alfonso Del Mar Resort, Chile.
8 hectares, 1 km in length.
250,000 cubic meters of salt water fill the pool.
Equivalent of approximately 6,000 backyard pools.
$1.5 billion to build.
Maintenance fees $4 million a year.
Not somewhere I have swum, but what a fantasy!
Update (22 Nov 2021): We visited Chile in March 2020. I investigated this pool to see whether it is worth a trip, but, sadly, it is only available to the residents of the condominiums and resort of which it is a part.
