#srslycute - The Internet's Cutest of Cute
This is most likely a rescue operation. Sometimes sea turtles are born in poor conditions, or they have too many predators waiting to snack on them, so what happens is that nature groups sometimes take them to a place like this. The reason they can’t just bring them out into the ocean right away is that they have a certain distance that their biological clocks tell them to swim, and if they were brought out to that point before they were ready, they would keep swimming and get lost.
So they take them to tanks like this and keep them around for a couple of months, then they release them to the ocean.