Old Dolma Lhakang
The original Dolma Lhakang monastery, seat of Akong Rinpoche. Now used as a retreat centre. There are about a dozen monks inside doing the traditional Tibetan 3 year, 3 months and 3 weeks retreat.
Long retreats are also run at Samye Ling, Akong Rinpoches monastery in Scotland. You can read more about this extraordinary practice here: