I like extreme sports like skydiving and also watersports. Any suggestion for doing something extreme in Malta(May 2016)? and the prices?
There are plenty of of options for watersports, including diving, but how 'extreme' they are I cannot tell you. Some ideas here:
Malta is a very small, very rocky island which is pretty built-up. I don't think there's enough space for skydiving...or, at least, not for safe landings...though I suspect you might fancy the 'Jetpack Experience' on the link above.