Summer training - all uphill

In America, we have music festivals.  Cool.  In Norway, they have roller ski festivals for World Cup skiers.  Roller ski races are only fun when you can beat the living daylights out of yourself going uphill.  Here's video and analysis of an uphill roller ski race from Norway.

http://www.oxygenfedsport.com/2012/07/2012-blink-festival-lysebotn-hillclimb-mens-video/ 

Summer is really the time when you can rake up and be able to train on a great deal of events and races that you are probably going to take part in.  And though it would be nice to be able to do that in similar weather conditions, I think that it would still be great to go out and have some variety with what you are going to do and what interests you are going to take.