Located on Robertson Barracks in Holtze, 15km East of Darwin. It is home to the 1st Brigade & 1st Aviation Regiment. The facility has a routine dependency of approximately 2800 members, with a large reserve component. The Barracks also accommodates an additional 2500 US marines every 6 months from May to September. The health centre provides primary medical, aviation medical, nursing, pharmaceutical, dental, physiotherapy and mental health services. It also operates a 22-bed low dependency ward 24/7. Standard operating hours are generally 07:30 – 15:30 Monday – Friday (depending on role requiremnents and specific craft groups required for weekend and on-call shifts).