Hi Graham 91 is increased to x10 mins at the request of South Hams District Council for half term week. But don't worry you will be confused in the next installment as there is a further short notice change registered at the request of Dartmouth Town Council to have the 10 mins frequency start a day earlier on 23 October for the Dartmouth Food Festival.

It is a seasonal service operating between Easter and the end of October. Plus there are occasionally out of season services for special events.

A service after 1st Nov would therefore appear to be a new venture using one bus and not two. As it is not on VOSA and tickets are bought from the car park machine and not the bus, it may be a private hire and not a public bus service and thus not on Stagecoach's timetables. 

Daily service 20 mins School terms, 10 mins School Holidays. Operates from 25 March until 30 October 2016 inc and at similar periods each year