Staying hydrated is important. Drinking water only is boring right? :P
Powerade
When I was a kid Powerade was something special we sometimes bought at a gas station or certain places (it's not available everywhere here in germany). The taste is nostalgic and you absolutely need to drink Powerade cooled!
Pocari Sweat
My first encounter with pocari sweat was during my Japan trip in 2016. I remember buying Pocari Sweat almost every day at one of the many vending machines. It was a lifesaver because it was so hot everyday (if you don't like hot weather like me I recommend not visiting Japan during summer time lol) and this cold drink made me suffer less.
Pocari Sweat is a great drink and it hydrates your body well. I personally like the taste (it doesn't taste like sweat btw haha).
In 2022 I wanted to experience Pocari Sweat again, went to an asian shop here in germany and they had tons of stuff except Pocari Sweat :( and it's super expensive to buy or import bottles online. Then I discovered Pocari Sweat Powder on Amazon which is expensive as well but at least you get more sweat for your buck. Though I feel like the original bottled pocari tastes better. Drinking this one cooled is a must as well.
I might add more drinks in the future.