Originally posted by: BudAshes
That seems pretty lame actually. Why do you want a giant pool? Id rather just go to the beach which is right next to it.
It is warmer than the ocean. This is southern Chile, it's getting the cold water coming up from Antartica. The article says the ocean is 17 degrees Celsius, which translates to 63 F, which is goddamn cold for water you're going to swim in.
It is safer than the ocean as there are no currents, riptides or undertows to drag small children or inexperienced swimmers out to sea. There are no predators or dangerous animals around (jellyfish for example, though I don't know how prevalent those are in Chile). It is also presumably patrolled by lifeguards, although it is South America, so maybe that's just wishful thinking.
It is cleaner than the ocean, as the filtration system removes all the nasty shit that the ocean has in it. Which is a lot of nasty shit. Sure, you aren't drinking it, unless you want to die (it is still saltwater), but I'd much rather swim in water I can see through.
It is the world's largest pool, so it gets written up and potential tourists think "boy, I'd like to see that," which brings tourists, and money, into the city, boosting the economy. People can see the ocean anywhere; they'll pay a lot to see something truly unique.
Yeah, there are a few reasons to have it. I'd swim in it at least once... I'd still probably prefer the ocean, but hey, cool idea at least.