Visitors to Dartmoor are being offered free guided walks – if they use public transport.

Experienced Dartmoor guides will lead the walks, which normally cost up to £5, free of charge on production of a bus ticket used on the journey to the start of the route.

The service is available on routes from Exeter and Plymouth and runs on summer Sundays, starting this coming weekend and ending in September.

The starting points are Princetown, Postbridge and Haytor and are scheduled to last between three and five hours.

Full details are on the Dartmoor National Park website.