The Jambay Lhakhang Drup Festival is an annual religious event in Bhutan, held at the 7th-century Jambay Lhakhang Temple in the Bumthang Valley. The festival honors Guru Rinpoche for introducing Tantric Buddhism to Bhutan and commemorates the founding of the temple. Highlights include traditional and masked dances, the sacred Mewang fire ceremony, and other religious rituals, creating a vibrant cultural and spiritual spectacle.