The Phobjikha Valley is located in Wangdue Phodrang dzongkhag (district) and borders Jigme Singye Wangchuck National Park. A large glacial valley, it is a great place to trek but is probably most famous for the endangered black-necked cranes who choose to winter here. Over 300 of the birds arrive late October and fly three times around the Gangte Goemba on arrival before settling in until February when they repeat this flying process on their departure back to Tibet. The Black-Necked Crane Information Centre run by the Royal Society for the Protection of Nature (RSPN) has an informative display about the cranes and high-powered telescopes for viewing the birds. The colourful annual Black-Necked Crane Festival is held in November to celebrate the birds return and educate local Bhutanese on the importance of conserving the birds and their environment.