off-track
adjective
• situated or taking place away from a racetrack.
off the beaten track
• in or into an isolated place.
• "we tried to find locations slightly off the beaten track"
Similar:
unfrequented,
isolated,
quiet,
private,
remote,
out of the way,
outlying,
secluded,
hidden,
backwoods,
in the back of beyond,
in the middle of nowhere,
in the hinterlands,
in the sticks,
