That is a pool, and it has fish in it.. but I wouldn't recommend swimming in it! hehehe Those fish are just amazingly big and beautiful. How the filter manages that bio-load is amazing. What a pretty pond.
Also, pretty amazing that the Koi and Aros are co-habitating and thriving. I wonder the water temp.
When someone asks what a Monster fish is, that's what they should be shown. Wow.
