(n.) One who makes a tour, or performs a journey in a circuit.

adventurer alpinist astronaut camper climber comers and goers commuter cosmopolite cruiser excursionist explorer fare globe-girdler globe-trotter goer hajji jet set jet-setter journeyer mariner mountaineer palmer passenger passerby pathfinder pilgrim pioneer rubberneck rubbernecker sailor sightseer slummer straphanger tourer trailblazer trailbreaker transient traveler traveller trekker tripper viator visiting fireman visitor voortrekker voyager voyageur wayfarer world-traveler