Voyager :  (noun)

1: a traveler to a distant land (especially one who travels by sea)

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, straphanger, tourer, tourist, trailblazer, trailbreaker, transient, traveler, trekker, tripper, viator, visiting fireman, voortrekker, voyageur, wayfarer, world-traveler,