To begin with, there are five walks featured on the Ayrshire Paths website which start and finish in the nearby village of Dailly, just a mile or so Northwest of Delamford. A description of each of these routes can be found here. The village of Barr, about four miles South of Delamford, also has five routes shown on the same website and these can be found here. Ayrshire Paths also give guidance for six walks around the village of Straiton, which is roughly five miles Northeast of Delamford, and more information on these can be viewed here.
The Galloway Forest Park itself has over 20 official trails to walk which vary greatly in both length and difficulty. Details on each of these routes can be found on the Forestry Commission website here.
Then there is the Ayrshire Coastal Path which is split into twelve sections and covers almost 150 km of coastline from Glen App in the South to Skelmorlie at the North end. The Rotary Club of Ayr have produced an excellent guide book which contains a wealth of both geographical and historical information with 14 maps for this entire route. More information on each stage of the route and how to purchase the guidebook can be found on their website by clicking here.