There are no restrictions on where you can travel to, as long as you've booked enough time to cover your whole journey.
There are some restrictions on the road types that you can travel on.
Can GoGet vehicles drive on unsealed roads?
GoGet vehicles are all 2WD and cannot be driven on unsealed roads.
Can I take a GoGet to the snow?
GoGet vehicles are all 2WD and cannot be driven in the snow, nor can they be taken above the snow line.