They...
They travel by ferry.
They...
They travel by bus.
They...
They travel by hot air balloon.
They...
They travel by space shuttle.
She...
She travels by bike / bicycle.
She...
She travels by train.
They...
They travel by van.
He...
He travels by scooter.
They...
They travel by car.
He...
He travels by canoe.
He...
He travels by motorbike / motorcycle.