https://www.ravertots.co.uk/ my friend took her little ones to one of these events and loved it x
@Sarune I was gonna say Raver Tots - it's awesome and very family friendly as well as having some really big names!
We are going to beats and balloons in June - take a look on Facebook :) not so much a rave but a nice event hopefully x
Not sure but we have the first light festival near us which is free.