Butterfly garden and pool are in Terminal 3 near the Ambassador Transit hotel and lounge (upstairs). Central area near all the shops.
There’s also the sunflower garden in Terminal 2 which awesome cause you can actually go outside for some fresh air (after getting past all the smokers). Orchid garden I believe is in Terminal 1.
I really love the free movie theaters where you can kill some time, relax in a comfy chair and nap if needed.
It’s cool that you can pretty much roam from terminal to terminal all within security 24/7. Late night there is near cause it’s so quiet.
If you need a quick workout just jog from T1-T3 without taking the train. Must be like 4-5 km total. That place is freakin huge
