Master's MateSafety Initiative Network

The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.

Other

KAIYOMARU NO.2

MMSI 431397000 · Call sign 8KYO

Not yet on Master's Mate

Type

Other

Flag

JPN

Length

65 m

Beam

12 m

Draft

4.6 m

Call sign

8KYO

IMO

8502444

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

On the Japanese registry, KAIYOMARU NO.2 is a 65-metre craft. She has a beam measuring 12 metres and a draft measuring 4.6 metres. She broadcasts as MMSI 431397000, call sign 8KYO, IMO 8502444. It's free to add KAIYOMARU NO.2 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.

Free forever · No credit card

Is KAIYOMARU NO.2 your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Last known position · Jun 4, 2026

Track KAIYOMARU NO.2 live — sign up free →

Position

38.3146° N, 141.0436° E

Crossing the Sea of Japan? You're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

Free with your claim

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put KAIYOMARU NO.2 on the map. It hands you the full bridge:

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim KAIYOMARU NO.2 and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About KAIYOMARU NO.2

What kind of vessel is KAIYOMARU NO.2?

KAIYOMARU NO.2 is a Other flagged to Japan.

Where was KAIYOMARU NO.2 last seen?

KAIYOMARU NO.2 was last reported in the Sea of Japan in Jun 2026 on public AIS.

What is KAIYOMARU NO.2's MMSI?

KAIYOMARU NO.2's MMSI is 431397000. Call sign 8KYO. IMO 8502444.

How big is KAIYOMARU NO.2?

KAIYOMARU NO.2 is about 65 m long, 12 m on the beam, drawing 4.6 m.

Is KAIYOMARU NO.2 on the Master's Mate Safety Initiative Network?

Not yet. If KAIYOMARU NO.2 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).