Some trips you can make happen at the last minute, like a weekend getaway or an impromptu road trip. But far-flung, grander adventures require a little—OK, fine, a lot—more planning. We’re talking about a once-a-year natural event or a state-crossing bikepacking trip. So we’ve curated a list of our favorite epic quests for 2020 and beyond that you’ll want to start thinking about now.