not sure exactly what you have in mind, Turkey offers some nice walking, the ''Lycian Trail'' and the coastline from Dalyan to Fethiye walking east is absolutely fabulous, the locals are very friendly and welcoming, in the forests groups of people live in ramshackle huts with large goat herds, one thing to be aware of is the time of year you go as at certain times and locations high in the mountains in high summer water can be a problem and fires are restricted due to forest fires, there are fire look-out posts in the mountains, i went in May and water and fire-making was not a problem at that time of year as it was not yet hot enough to create a problem (though still very hot), May is a good time to go there in my opinion as it's still hot but tolerable, later on the heat can be uncomfortable and mosquitos start to become a nuisance. You can catch a flight to Dalaman airport. (and for those that have been it's hard not to laugh when the locals tell you their name is ''Farty'', it's a common name there).
PS, oh and it was very cheap but that was three years ago so double-check, flight only cost £85 return then and took four hours from Birmingham, shops supply good variety of food and you invariably get offered a glass of Apple-tea and a seat, shop in Dalyan run by a very enthusiastic walker/mountain biker who is exceptionally helpful and sells guidebooks/maps/Lycian Trail guides on the area but at moment his name escapes me. If you have ever seen the Humphrey Bogart film ''The African Queen'' well the scene where they went through the marshes to get to the sea was filmed at Dalyan along the river there, boats run regular trips along the river taking you from Dalyan to the beach through a maize of marshes and fish traps.