Unwind in these ten acres of gardens, set in the heart of an 800 acre estate with magnificent views over the Swale Estuary.GardenGroup Visits OSt Martin's Church North Holmes Road, Canterbury, Kent, CT1 1PW, Tel: 01227 768072, www.martinpaul.org(4 miles, 6 km)St Martin's Church is the oldest in England still in use as a parish church and is part of the Canterbury World Heritage Site.