Oh, Okroshka! Yeah, it's pretty wild, isn't it??? I think it's a Russian thing, or Eastern European...? I might be wrong but it's definitely a cold soup, like, full of chopped up veggies, meats, and eggs, all floating in kvass or something similar, right???
And yeah, it's a total summer thing!!! I'm pretty sure it's meant to be super refreshing when it's hot, like a gazpacho but... different! Definitely not a winter warmer, haha :)