There are some things you just need to do at least once in your life—paddle that iconic stretch of river, ski that couloir you can see from the tram, mountain bike off the Continental Divide. Don’t let the logistics of getting there, hiring a guide, or figuring out when or how to pull it off stop you from checking these must-do missions off your list. We’ve done the planning homework for you.

Check out my full story on Outside Online.