A FREE festival of Dartmoor archaeology will culminate at Postbridge on Saturday, with a day of family-friendly activities and live Bronze Age dig. The events have been organised by Dartmoor National Park Authority (DNPA) as part of the Council for British Archaeology's annual week-long celebration of the country's archaeological heritage.  Guided walks have been taking place throughout the week. Today (Thursday) the mires restoration site at Winney's Down will be the subject of a visit. The plan is to meet at Fernworthy Reservoir car park and car-share through the forest.  During the four-hour walk to Sittaford Tor and Winney's Down there will be an opportunity to look at the Grey Wethers stone circles and discuss the results of archaeological and palaeo-environmental surveys.  Dogs are not permitted on any of the walks which are free although places must be booked by calling 01626 831040. On Saturday, Bellever Day will include the handling of prehistoric finds, clay pot making, charcoal production and nettle weaving as well as the opportunity to discover the latest finds at the ongoing excavation of a nearby hut circle. At the Life, Death and Landscape Exhibition a Bronze Age princess will talk about the era and children can dress up in costumes of the day. There will also be games, quiz and details about the forthcoming Whitehorse Hill Exhibition at Plymouth Museum.  DNPA archeologist Andy Crabb said: 'The open day represents an extremely rare opportunity to visit an archaeological excavation of a Bronze Age hut circle. 'The public  are very welcome to visit the site and watch and talk to the archaeologists as they work to find evidence of how our ancestors lived and worked on Dartmoor 3,500 years ago.' For information call 01822 880272.