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Explorer of the Seas

Cruise ship · Bahamas · built 2000 · AIS Class A

IMO9161728MMSI311316728Call signC6SE4Last AIS position Sep 30, 2026, 18:52 UTC

In short

Explorer of the Seas (Cruise ship, Bahamas flag) was last seen on AIS on , under way at 19 kn, in the Mediterranean Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. Its crew-entered AIS destination is GR ATH; its reported draught is 9.1 m (voyage report via AISstream.io global terrestrial AIS, received Sep 30, 2026, 17:48 UTC). It can carry up to 4,029 passengers (source: Wikidata).

Current voyage: from Piraeus (departed Sep 30, 2026, 16:57 UTC) to GR ATH

Vessel type
Cruise ship
Year built
2000
Gross tonnage
138,194
Size (length × beam)
311 m × 49 m
Registered owner
—

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Photo of EXPLORER OF THE SEAS
Photo: Bahnfrend · Licence: CC BY-SA 4.0 · via Wikimedia Commons

Last reported position

received
Position
37.2277° N, 23.6813° E
Area
Mediterranean Sea
StatusWhat do AIS statuses mean?
Under way using engine
Speed
19 kn
Course
188°
Heading
189°
37.2277° N, 23.6813° E
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Last 30 days: 1 port call (Piraeus).

Port calls are detected by Voydar from AIS (at least 30 minutes slow inside a harbour area); see Port calls below.

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Identity & particulars

Name
Explorer of the Seas
IMO numberWhat is an IMO number?
9161728
MMSIWhat is an MMSI?
311316728
Call signWhat is a call sign?
C6SE4
AIS ship type
Passenger
Gross tonnageGross tonnage vs deadweight
138,194
Length overall
311 m
Beam
49.1 m
Year built
2000

A tag next to a value names the register that supplied it (hover or tap it for the record and date). Values without a tag come from the ship's own AIS broadcasts or from Wikidata. Position and identity are derived live from AIS.

Ownership & management

Each line shows where the fact comes from. Links backed by an identifier point to the company page.

Registered owner
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Royal Caribbean International(not linked to a company record)
Source: Wikidata · reported · confidence 0.6 · retrieved Jun 8, 2026
Operator
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026
Royal Caribbean International(not linked to a company record)
Source: Wikidata · reported · confidence 0.6 · retrieved Jun 8, 2026
ISM manager
Source: EU MRV (THETIS-MRV) emissions · reporting year 2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
Source: EU MRV (THETIS-MRV) emissions · reporting years 2024–2025 · reported · confidence 0.9 · retrieved Sep 28, 2026
Builder
Source: Wikidata · reported · confidence 0.8 · retrieved Sep 22, 2026

Timeline

Dated events for this ship from every source Voydar holds, newest first. Each line names its source; derived items say how they were derived.

DateEventSource
Left PiraeusAIS-detectedVoydar port-call detector (AIS geofence)
Arrived at PiraeusAIS-detectedVoydar port-call detector (AIS geofence)
Left PiraeusAIS-detectedVoydar port-call detector (AIS geofence)
Arrived at PiraeusAIS-detectedVoydar port-call detector (AIS geofence)
Inspection at Cape Canaveral, FloridaUSCG PSIX / CGMIX inspections
Inspection at Cape Canaveral, FloridaUSCG PSIX / CGMIX inspections
Port State Control inspection at Cape Canaveral, FloridaUSCG PSIX / CGMIX inspections
ISM manager: Royal Caribbean Cruises, Ltd. (previously RCL Cruises Ltd)Voydar relationship-change derivation (derived by Voydar from EU MRV (THETIS-MRV) emissions)
Port State Control inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Port State Control inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Port State Control inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Inspection at Miami Beach, FloridaUSCG PSIX / CGMIX inspections
Reported arrival at OTHER HAWAIIAN ISLANDS AREA PORTS, HAWAII (NET)Authority-reportedUSACE foreign traffic vessel entrances & clearances
Reported departure from OTHER HAWAIIAN ISLANDS AREA PORTS, HAWAII (NET)Authority-reportedUSACE foreign traffic vessel entrances & clearances
Reported arrival at HonoluluAuthority-reportedUSACE foreign traffic vessel entrances & clearances

Owner, operator and manager changes found by comparing yearly EU MRV reports are dated to the reporting year ("during 2025"), not to a day. Port calls here are the most recent only; the full lists are further down.

Safety & inspections

50
Inspections
not recorded
Detentions
0
Deficiencies
DateTypePortFindings
Nov 20, 2025Vessel InspectionCape Canaveral, Floridaclean
Nov 17, 2025Vessel InspectionCape Canaveral, Floridaclean
Oct 30, 2025Vessel InspectionPSCCape Canaveral, Floridaclean
Nov 17, 2024Vessel InspectionPSCMiami Beach, Floridaclean
Nov 11, 2023Vessel InspectionPSCMiami Beach, Floridaclean
Oct 14, 2023Vessel InspectionMiami Beach, Floridaclean
Jan 2, 2023Vessel InspectionPSCMiami Beach, Floridaclean
Oct 4, 2022Vessel InspectionMiami Beach, Floridaclean
Aug 16, 2022Vessel InspectionMiami Beach, Floridaclean
Aug 10, 2022Vessel InspectionMiami Beach, Floridaclean
Jun 25, 2022Vessel InspectionPSCMiami Beach, Floridaclean
Apr 3, 2022Vessel InspectionPSCSan Juan, Puerto Ricoclean
Feb 1, 2022Incident InvestigationWASHINGTON, District of Columbiaclean
Jan 9, 2022Vessel InspectionPSCSan Juan, Puerto Ricoclean
Nov 15, 2021Vessel InspectionSt. Thomas, Virgin Islandsclean
Oct 28, 2021Vessel InspectionPSCSan Juan, Puerto Ricoclean
Aug 3, 2021Vessel InspectionSan Juan, Puerto Ricoclean
Jul 3, 2021Vessel InspectionPSCMiami Beach, Floridaclean
Jul 1, 2021Vessel InspectionPSCMiami Beach, Floridaclean
Apr 2, 2020Vessel InspectionMIAMI, Floridaclean

Source: U.S. Coast Guard Port State Information Exchange (PSIX) — public domain. Covers inspections recorded in U.S. waters. Free on Voydar; the incumbents charge for this.

Emissions & fuel consumption

Independently verified annual figures reported under the EU MRV regulation — public environmental data the incumbents don't surface.

YearCO₂ emittedFuel burnedTime at seaCO₂ / n mile
201983,921 t26,605 t204 days1,264 kg
20205,675 t1,814 t5 days5,278 kg
202373,840 t23,625 t151 days1,217 kg
202468,365 t21,921 t138 days1,200 kg
202558,785 t18,755 t113 days1,269 kg

Technical efficiency: EEXI (8.77 gCO₂/t·nm). Source: European Commission / EMSA THETIS-MRV (EU Regulation 2015/757). Covers voyages to, from and within the EU/EEA.

Port calls

Two kinds of evidence, kept apart: calls Voydar detected from the ship's AIS positions, and arrivals and departures published by port authorities and customs records.

Detected from AIS AIS-detected

PortArrivedDepartedTime in port
Piraeus GRPIRSep 30, 2026, 03:56 UTCSep 30, 2026, 16:57 UTC13 h 2 min
Piraeus GRPIRJun 9, 2026, 03:47 UTCJun 9, 2026, 17:25 UTC13 h 38 min

Detected by Voydar when the ship's AIS positions stayed slow inside a harbour area. Calls shorter than 30 minutes are not shown. Depends on AIS reception; detection started on June 8, 2026.

Reported by authorities Authority-reported

PortRecordDate (UTC)BerthSource
OTHER HAWAIIAN ISLANDS AREA PORTS, HAWAII (NET)ArrivalOct 15, 2016(date only)—USACE foreign traffic vessel entrances & clearances
OTHER HAWAIIAN ISLANDS AREA PORTS, HAWAII (NET)DepartureOct 15, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Honolulu USHNLArrivalOct 14, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Honolulu USHNLDepartureOct 14, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Seattle USSEADepartureOct 8, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Seattle USSEAArrivalOct 8, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Astoria USASTArrivalOct 6, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Astoria USASTDepartureOct 6, 2016(date only)—USACE foreign traffic vessel entrances & clearances
San Francisco USSFOArrivalOct 4, 2016(date only)—USACE foreign traffic vessel entrances & clearances
San Francisco USSFODepartureOct 4, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Santa Barbara USSBAArrivalOct 3, 2016(date only)—USACE foreign traffic vessel entrances & clearances
Santa Barbara USSBADepartureOct 3, 2016(date only)—USACE foreign traffic vessel entrances & clearances

Records published by the authority named on each row. Earliest record for this ship: January 2, 2002.

About Explorer of the Seas

Explorer of the Seas is a Voyager-class cruise ship owned and operated by Royal Caribbean International, completed in 2000. She can accommodate over 3,000 guests, including scientists making use of a built-in atmospheric and oceanographic laboratory operated by the University of Miami's Rosenstiel School of Marine, Atmospheric, and Earth Science. The lab, with its attendant educational and outreach programs for passengers, was discontinued in 2007.

Summary from Wikipedia, licensed CC BY-SA.

Frequently asked questions

Where is Explorer of the Seas now?
Explorer of the Seas (Cruise ship, Bahamas flag) was last seen on AIS on Sep 30, 2026, 18:52 UTC, under way at 19 kn, in the Mediterranean Sea. Voydar has no more recent AIS position for this ship. Its current location cannot be established from this report. The crew-entered destination was GR ATH (voyage report via AISstream.io global terrestrial AIS, received Sep 30, 2026, 17:48 UTC). This report does not confirm the ship’s current route.
What kind of ship is Explorer of the Seas?
Explorer of the Seas is a cruise ship sailing under the flag of Bahamas, built in 2000 by Kvaerner Masa-Yards. The vessel is 311 m long with a beam of 49.1 m and has a gross tonnage of 138,194.
What sanctions and inspection records does Voydar hold for Explorer of the Seas?
Voydar has no matched sanctions record displayed for Explorer of the Seas from the OFAC SDN list, the UK Sanctions List, the Canadian autonomous sanctions list, the EU list of designated vessels and the New Zealand Russia Sanctions Register. Coverage may be incomplete; this is not sanctions clearance. Explorer of the Seas has 50 recorded Port State Control inspections. Detention and deficiency detail is not recorded for these inspections.

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