Pacific · Vessel profile

SS Thorfinn

Former Norwegian ice-class whaler converted to a charter dive vessel for Truk Lagoon.

Chuuk, Federated States of Micronesia

Published operator: Seaward Holdings Micronesia Inc. [5]

Marketed by operator

Length: 58 m
Guests: 20
Cabins: 10
Built: 1954

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Research reviewed 2026-10-18.

Vessel photograph · Image source

Published specifications

Vessel type: Converted steam-powered dive liveaboard
Published status: Marketed by operator
Registered name: THORFINN
Length: 58 m [1]
Beam: 10 m [1]
Draft: 5.5 m [1]
Guests: 20 [1]
Guest cabins: 10 [1]
Year built: 1954 [1]
Refit: 2008 [1]
Speed: 11 kn [1]
Flag: Micronesia [2]
IMO: 5359901 [2]
Callsign: V6CC [3]
Internet: Satellite broadband Wi-Fi [1]
Identity checked: 2026-10-18

Published ownership

Seaward Holdings Micronesia, Inc. (historical court record) [4]

Basis: The 25 April 2013 court opinion explicitly identifies Seaward Holdings Micronesia, Inc. as the company owning SS Thorfinn, in its account of the June 2007 salvage contract. This establishes historical ownership, not present registered title.

As of: 2013-04-25

Ownership and the advertised operator are separate roles. Historical records remain dated claims.

Contact and booking links

Official operator contact page https://thorfinn.net/contact/ [7] · checked 2026-10-18
Public business email seaward.thorfinn@gmail.com [5] · checked 2026-10-18
Public business telephone +691 330-3040 [7] · checked 2026-10-18
Public business telephone +691 330-4253 [7] · checked 2026-10-18
Public business telephone +691 930 4722 [5] · checked 2026-10-18
Official operator website https://thorfinn.net/ [6] · checked 2026-10-18
Official operator website https://thorfinn.net/plans-rates-2023-24/ [5] · checked 2026-10-18
Official X page https://twitter.com/diveSSThorfinn [7] · checked 2026-10-18
Operator website
Published booking page

Links lead to third-party operators or agents. This directory does not confirm departures or accept bookings.

On board

Air conditioning
110 V and 220 V outlets

Diving facilities

Oxygen generator
Dive compressors

Research notes and uncertainties

Operator lists 58 m / 170 ft length, 10 m / 30 ft beam and 5.5 m / 17 ft draft; the imperial values are not exact equivalents. Metric values are retained as published. Refit field records the last major reconstruction listed, not a verified latest refit.
Registry particulars show build 1952, length 51.62 m and Micronesia flag; operator states 1954 and 58 m. IMO is directly corroborated by operator; registry dimensions/build are not imported. Registry flag is a published profile value, not independently verified current registration.
Directory MMSI field contains 1, a placeholder, not a usable MMSI. It is excluded.
Existing metric dimensions are retained; inconsistent imperial equivalents are recorded for review.
Current operator evidence names the same company, but does not by itself prove continued vessel ownership.

Not yet verified: Crew, Hull, MMSI.

Source-linked research

The published details below include historical records and conflicting claims, with their original sources retained.

Published research for SS Thorfinn
Detail	Published information and source
operator	SS Thorfinn [1]
imo	5359901 [1]
built	1954 [1]
refit	2008 [1]
guests	20 [1]
cabins	10 [1]
draftM	5.5 [1]
lengthM	58 [1]
beamM	10 [1]
speedKn	11 [1]
vesselType	Converted steam-powered dive liveaboard [1]
internet	Satellite broadband Wi-Fi [1]
diveFacilities	Oxygen generator; Dive compressors [1]
amenities	Air conditioning; 110 V and 220 V outlets [1]
imo	5359901 [2]
flag	Micronesia [2]
registeredName	THORFINN [2]
callsign	V6CC [3]
registeredName	THORFINN [3]
Speed (knots)	11 [1]
Cruising range	9,000 nautical miles at 11 knots. [1]
Maximum speed	16 knots [1]
Construction and conversions	Built at Stord Shipyards, Norway, in 1954 as an ice-class whaler; charter conversion in Vancouver in 1977; major reconstruction at Batangas in 2008. [1]
Dimension conflict	Operator pairs 17 ft draft with 5.5 m, and 170 ft length with 58 m; these are not exact conversions. [1]
Owner	Seaward Holdings Micronesia, Inc. (historical court record) [4]
Ownership evidence date	2013-04-25 [4]
Ownership source	https://www.fsmlaw.org/fsm/decisions/vol19/19FSMIntrm.001-012.html [4]
Ownership evidence basis	The 25 April 2013 court opinion explicitly identifies Seaward Holdings Micronesia, Inc. as the company owning SS Thorfinn, in its account of the June 2007 salvage contract. This establishes historical ownership, not present registered title. [4]
Historical ownership context	The court distinguishes the vessel-owning company from Lance Higgs, its owner and the ship master. [4]
Operator	Seaward Holdings Micronesia Inc. [5]
Official operator page	https://thorfinn.net/plans-rates-2023-24/ [5]
Current operator wording	The page headed Plans & Rates 2025/2026 explicitly says SS Thorfinn is operated by Seaward Holdings Micronesia Inc. [5]
Vessel photograph	Real bow exterior with Thorfinn name clearly visible. [6]
Operator contact page	https://thorfinn.net/contact/ [7]
Operator email	seaward.thorfinn@gmail.com [5]
Operator phone	+691 330-3040 [7]
Operator phone	+691 330-4253 [7]
Operator phone	+691 930 4722 [5]
Operator website	https://thorfinn.net/ [6]
Operator website	https://thorfinn.net/plans-rates-2023-24/ [5]
Operator x	https://twitter.com/diveSSThorfinn [7]

Sources

SS Thorfinn operator informationoperator · accessed 2026-10-17
VesselFinder THORFINN identity profileCommercial vessel directory · accessed 2026-10-17
AISfriends Thorfinn radio identityAIS / vessel directory · accessed 2026-10-18
FSM Supreme Court — Adams Bros. Corp. v. SS Thorfinn, decided 25 April 2013court decision (historical) · accessed 2026-10-18
SS Thorfinn — official Plans and Rates 2025/2026operator · accessed 2026-10-18
SS Thorfinn — official vessel websiteoperator · accessed 2026-10-18
Seaward Holdings Micronesia Inc. — published business contact detailsoperator · accessed 2026-10-18