MMSI 366886780 · Call sign WDB3409
Not yet on Master's MateRIDLA, a passenger ferry hailing from the United States, measures 11.6 metres on deck. Her hull carries 4.5 metres in the beam and a draft of 1.2 m. On AIS she shows as MMSI 366886780, call sign WDB3409. Claim RIDLA free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put RIDLA on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.