REEF ADVENTURE — Passenger · MMSI 503756000

REEF ADVENTURE is currently under way in the Coral Sea. It is sailing from CAIRNS to CAIRNS with an ETA of 9 Nov 2026, 06:45 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

REEF ADVENTURE broadcasts MMSI 503756000, with call sign 30980QC. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.

REEF ADVENTURE is classified as a passenger vessel registered under the AU flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full passenger fleet at /vessel-type/passenger and full AU flag list at /flag/au.

MarineRadar shows the latest AIS broadcast from REEF ADVENTURE above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.

AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.

As a passenger, REEF ADVENTURE sits in the same design class as the other passengers listed in the Similar Vessels section of the vessel page, or in the full passenger directory at /vessel-type/passenger.