The National Union of Rail, Maritime and Transport Workers (RMT) has called three 24-hour strikes in a week in late June. The three strike days are Tuesday 21 June, Thursday 23 June and Saturday 25 June. RMT members will strike at Network Rail and 13 English train companies including Great Western which serves the mainline service to Totnes/Dartington. https://inews.co.uk/news/strike-dates-full-list-rail-air-travel-bus-bin-collection-walkouts-1679462
The plans include a total shutdown of passenger rail travel before 07.30 or after 18.30 during the three days of industrial action. Priority will be given to freight services transporting fuel and food. The whole network is likely to be reduced to a skeleton service from June 21 to 26. Although mainline services will remain open there is likely to be a very reduced service. If you are booked on a specific service the rail companies have promised to honour all tickets regardless of which service you use. The current estimate from the BBC is that only around 20% of services will run and that days adjacent to the announced strike days will also be affected as trains will be in the wrong place and unable to maintain a normal service.
If you are travelling to Dartington by rail we recommend you check frequently with your ticket provider. If you are travelling from Heathrow or any major city you might consider using the bus service but bear in mind that this takes considerably longer than the train.
If you are staying onsite and think you might be arriving after 21.00 on the day of your arrival it is imperative that you let Guest Services know by emailing firstname.lastname@example.org or calling them on +44 1803 847150.