Border Breakers

Welcome to the IAESTE Gliwice Weekend in Cieszyn! Feel free to, literally, Cross The Line! You can freely walk to another country in a couple of minutes, eat some Polish OR Czech dishes, drink some Polish OR Czech wine. We will be visiting the church, which is visible on the 20 zł bill. More? How about we will add a WTF party! It is up to you to expand these three letters! Even more? We will be seeing the brewery in Cieszyn, in which we will be having free beers!
MORE? We can drink the beers outside! This is forbidden in Poland, but in Czech no one cares!