The magic begins the minute you step onto the gravel path, meandering its way through private woodland in search for the treehouse hidden within its midst. A treehouse with an eclectic, timeless interior, lovingly designed, perhaps by pixies themselves!. Visit the UNESCO World Heritage site of Hadrian’s wall at the nearby Roman fort of Birdoswald. 3 night stays from £480.00. Based on 2 adults and 2 children over the age of 7 years. For more information, mail today.