The dictionary definition of hobby is 'an activity someone does for pleasure when they are not working'.
So if you travel for pleasure whilst you are away from one, you can absolutely consider your travel as a hobby.
Travel gives us our greatest stories, our most cherished memories and countless irreplaceable learnings that we can choose to pay forward to others. It teaches us about ourselves and each other, it broadens our horizons and, just like a reset button, it forces us to refocus on what really matters.