The ship and its major sponsors last night gathered on board the YWAM ship to celebrate the completion of the deployment.
The ship will return to Australia where it will undergo a scheduled maintenance and refitting before it returns to PNG in November.
It was deployed to the rural areas of Western, Gulf, central, Milne Bay, Oro, and Morobe provinces treating over 19,000 patients.
Executive Program manager for YWAM ships Dr Serah Dunn said 598 volunteers from 21 countries travelled into PNG for the health outreach voyage.