nomad — a member of a people or tribe that has no permanent abode but moves about from place to place, usually seasonally and often following a traditional route or circuit according to the state of the pasturage or food supply.
vagabond — wandering from place to place without any settled home; nomadic: a vagabond tribe.
adventurer — An adventurer is a person who enjoys going to new, unusual, and exciting places.
beachcomber — A beachcomber is someone who spends their time wandering along beaches looking for things they can use.
bum — Someone's bum is the part of their body which they sit on.
gad — to move restlessly or aimlessly from one place to another: to gad about.
gadabout — a person who moves about restlessly or aimlessly, especially from one social activity to another.
gypsy — a member of a nomadic, Caucasoid people of generally swarthy complexion, who migrated originally from India, settling in various parts of Asia, Europe, and, most recently, North America.
itinerant — traveling from place to place, especially on a circuit, as a minister, judge, or sales representative; itinerating; journeying.
pilgrim — a person who journeys, especially a long distance, to some sacred place as an act of religious devotion: pilgrims to the Holy Land.
rambler — a person, animal, or thing that rambles.
straggler — to stray from the road, course, or line of march.
stray — to deviate from the direct course, leave the proper place, or go beyond the proper limits, especially without a fixed course or purpose; ramble: to stray from the main road.
stroller — a person who takes a leisurely walk; saunterer.