I;m going to sweden....I searched everywhere..but couldn;t find that place..WHERE is it?

well...i;m going to sweden 2 weeks from now...i have heard that u can find a place FREE for teenagers or young people in order to spend their summer and time there...i will be in the city UPPSALA ..so i need a class there..anything..like an english language class or swidish,PLZ help me to find a place to spent my summer there!|||idk