Underground Parties/Festivals/Raves/Fun!!!? April May?

Hello to all!

My mate and I, both 22, both from UK, both just finished Uni, are going for a 2 month mission through Europe in April and May! We are struggling to find anything going down really"!

Can anyone reccomend any festivals(kazantip stylee) or clubss (IN APRIL/MAY maybe JUNE)? LOUD MUSIC AND RAWRRR etc

Anything! Dirty grimey places full of nutters/punks/metal heads, or sweaty gurning raver hang-outs!

Or, for example, anything out of the ordinary(runnin with bulls), adrenaline junky kinda stuff, likkkkeee somewhere they shoot you out of a rocket into a massive canyon full of quilts?

IM EXCITED! Love you xx

Dan

Exit Festival in July in some fortress in Serbia.

Benicassim in July in Spain.

Also one of my mates drove round Europe and he said there are some mental raves in Austria/Switzerland in some forests around the border.