Summer Break event is LIVE until August 28th, 5PM UTC
If you open all 50 Coolers every day, you can expect to get the following rewards:
NOTE: There are some rare 1 in 1000 chance items, like the pink snail shell hat, that you may or may not get. The only "rare" I got below was said hat, but you may get it yourself AND more!
Stay cool Idleoneers ːgp_coolː
~Lavaflame2