Unlike the North Rim, which has to cope with far fewer visitors - the roads along much of the cliff-edge on the South Rim are closed to public vehicles. Thankfully the bus-service that plies the route along the edge of precipice is free, fast and regular. The drivers give out plenty of information about where to stop and what to see as well. Happily the buses run late into the night too. We set out to walk a few miles back to our cabin and soon discovered that anti-light pollution measures in force around the Canyon meant that there were no street-lights - and we had no torch with us. We soon abandoned our attempt to rediscover Maswick Lodge simply using the sense of touch - and reverted to the free bus!