The lastest information about this coach service (on 31 Aug 2018) came from the Traveline South East website. This is a Megabus coach service which should be booked in advance of travel. The 'Online Map' link above also contains links to a Google Earth view of this service.
*** DO NOT USE THIS INFORMATION FOR TRAVEL WITHOUT CHECKING IT *** *** IT WAS LAST CHECKED 2 MONTHS AGO AND MAY NOW HAVE BEEN ALTERED. ***