Ship Spotting: Identify Every Ship You See

There's a particular pleasure in looking at a distant silhouette and knowing it's a Panamanian bulk carrier bound for Rotterdam. Ship spotting is birdwatching with 200,000-ton subjects — and a live AIS map is your field guide.

Identify the ship in front of you

  1. Open VesselFlow at the waterfront and zoom to your stretch of water.
  2. Open the Nearby list — every on-screen vessel, sorted by distance from the map center. The ship you're staring at is usually first or second.
  3. Tap it: name, type, flag, speed and heading — free. Cross-check the heading with what you see; a ship crossing left-to-right on a westerly heading confirms the match.
  4. Star anything interesting. Your watchlist becomes a logbook of every notable ship you've seen.

Read the map like a spotter

Know what's coming before it appears

The spotter's real advantage is seeing over the horizon. Pan the map up-channel: a container ship 20 nautical miles out at 15 knots reaches you in roughly 80 minutes — time enough for coffee. VesselFlow's port view shows inbound vessels sorted by soonest ETA for thousands of ports, which is effectively tomorrow's spotting schedule. With Pro, the voyage and specs sheets add where each ship came from, where it's bound, and how big it really is.

Where to stand

Share your catches: VesselFlow generates a share card for any vessel — a poster with the ship and a map of where you found it. Spotting is better as a group sport.

VesselFlow app icon

Your ship-spotting field guide

Nearby list, type filters and live telemetry for every broadcasting ship. Free on iPhone & iPad.

Download on the App Store

FAQ

How do I identify a ship I can see from shore?

Zoom the live map to your water, open the Nearby list, and the ship in front of you is usually at the top. Tap for name, type and flag.

What are the best places to watch ships?

Harbor entrances, straits, canal approaches and bridges over channels — anywhere traffic must pass close to shore.

Can I know in advance when a big ship will pass?

Pan up-channel and do the speed math, or check a port's inbound board sorted by ETA.