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Superyacht Watch

The public record of superyacht movements

50 m motor yacht · Cayman Islands flag

Impromptu

In port at Port Hercule since 14 Jul 2026 — 12 hours so far. Last signal 15 Jul 2026, 03:40 UTC.

Impromptu is a 50 m motor yacht registered under the Cayman Islands flag, on the record since 14 Jul 2026. The last 90 days show 1 port call, with the most harbour time at Port Hercule.

Map of the last recorded position of Impromptu, near 43.735°N 7.424°E

Last recorded position, rounded to ~100 m, as of 15 Jul 2026, 03:40 UTC. Imagery ©Mapbox ©OpenStreetMap

The last 90 days

MayJunJulPort Hercule, since 14 Jul 2026
In portGaps: underway or outside the monitored area

Port calls

Monaco: 1MONACO
Harbours Impromptu has called at, sized by number of recorded calls; the brass mark is the current port.
ArrivedDepartedPlaceTime in port
14 Jul 2026Still in portPort Hercule—

Movement log

14 Jul 2026

ArrivedPort Hercule
First recorded—

Related yachts

Also at Port Hercule
Atlantis II (116 m), Phoenix 2 (87 m), SS Delphine (79 m), Wedge Too (65 m), Vicky (59 m)
Of a similar size
Rebellious (50 m), Ela (50 m), R.darenben (50 m), K2 (50 m), Orion (50 m)All yachts of 40–60 m
Also under the Cayman Islands flag
Dragonfly (142 m), Luminance (139 m), Bravo Eugenia (109 m), Andromeda (107 m), MY Amadea (106 m)All yachts under the Cayman Islands flag

Registry particulars

Name
IMPROMPTU
Type
Motor Yacht
Length overall
50 m
Beam
9 m
Flag
Cayman Islands
MMSI
319769000
IMO
9599640
Callsign
ZGBJ3
First recorded
14 Jul 2026
Last signal
15 Jul 2026, 03:40 UTC

Particulars as broadcast over AIS; dimensions are the transmitted hull values. Vessel operators: see the privacy & takedown policy.