What is there to do for...?

Question

What is there to do for about 70 teens ranging from 13 to 15 year olds once a month or every 2 months that will cost about $10 to nothing for each person, not like movies but something where there is fun and socializing.

Answer 1

go to parks,  skateboarding, picnicing, organize sports that all can enjoy, field trips (museum, points of local history/