Auckland Anniversary Day is observed in the northern half of New Zealand’s North Island, specifically in the historic Auckland Province, on the Monday closest to January 29. This public holiday commemorates the arrival of Captain William Hobson in New Zealand in 1840, who drafted the Treaty of Waitangi shortly after his arrival. The treaty recognized Māori land rights and established a legal basis for British settlers. Celebrations include the Auckland Anniversary Regatta, the oldest sporting event in New Zealand, which has been recognized as a central event since 1850. Other festivities on this day feature parades, concerts, street performances, cultural festivals, and fireworks, making it a vibrant occasion for the local communities. The modern observance extends to regions such as Northland, Waikato, and Bay of Plenty, among others.