So, when you first start playing, you'll notice that gyms are located at real-world landmarks, like statues or public art. You can see them on your map, and when you get close, you can choose to battle the gym. It's super easy to get started, and before you know it, you'll be battling like a pro!
The core loop of the game is all about exploring, battling, and collecting Pokémon and items. You'll spend your time wandering around, catching new Pokémon, and leveling up your existing ones. Then, you'll use those Pokémon to battle other players and take over gyms.