• itinerant, roaming, rover, vagrant
• to be on the hike, to knock about, to knock about the world, to knock around, to maunder, to maverick, to meander, to ramble, to range, to roam, to rove, to spatiate, to straggle, to stroll, to tramp, to trollop about
• hike, peregrination, roam, roaming, rovingness, vagabondage