Off airport car park that offers valet services etc whilst you are away. To find the car park(if coming on a658 from Leeds) After coming through tunnel turn left at roundabout(NOT right for main airport terminal) and entrance to car par is about 400 yards along the road on the left, marked with a guardsman sign. You leave your keys with the staff at the car park reception and they will park your car and drop you off in a minibus at the airport. They then meet you with the minbus on your return. The service is good for an off airport car park, but they are not much cheaper than the main on site airport car park and I think Sentinel have a few downsides: They have your car keys and move your car around their car park whilst you are away(they shuffle the spaces). During the summer there were very long queues waiting for their little buses — as everyone arrives at once! otherwise though an okay service.