Americas · Vessel profile
Argo
Steel expedition liveaboard with nine cabins. Currently assigned to National Geographic Pristine Seas research and unavailable for Cocos dive bookings.
Published operator: Undersea Hunter Group [1]
On National Geographic Pristine Seas global expedition; unavailable for Cocos bookings
- Length
- 39 m
- Guests
- 18
- Cabins
- 9
Research reviewed 2026-10-19.

Published specifications
- Vessel type
- Dive liveaboard and research expedition vessel
- Published status
- On National Geographic Pristine Seas global expedition; unavailable for Cocos bookings
- Length
- 39 m [1]
- Guests
- 18 [1]
- Guest cabins
- 9 [1]
- Crew
- 12 [1]
- Hull
- Steel [1]
- Speed
- 10 kn [1]
- Nitrox
- Nitrox membrane system; oxygen and rebreather support published [1]
Contact and booking links
- Operator reservations and inquiries info@underseahunter.com [1] · checked 2026-10-19
- Costa Rica office +506 2228 6613 [1] · checked 2026-10-19
- USA office +1 800 203 2120 [1] · checked 2026-10-19
- Operator website https://underseahunter.com/ [1] · checked 2026-10-19
- Operator website
Links lead to third-party operators or agents. This directory does not confirm departures or accept bookings.
On board
- Air-conditioned ensuite cabins
- Satellite telephone
- Camera storage and charging
Diving facilities
- Dive skiffs
- Two Bauer compressors
- Camera rinse tanks
Published safety equipment
- GPS
- Radar
- Life rafts
- First aid kit
- Diver locator systems
- Firefighting system
Source-linked research
The published details below include historical records and conflicting claims, with their original sources retained.
| Detail | Published information and source |
|---|---|
| Operator | Undersea Hunter Group [1] |
| Operator website | https://underseahunter.com/ [1] |
| Vessel type | Dive liveaboard and research expedition vessel [1] |
| Operating status | On National Geographic Pristine Seas global expedition; unavailable for Cocos bookings [1] |
| Length (m) | 39 [1] |
| Hull construction | Steel [1] |
| Maximum guests | 18 [1] |
| Guest cabins | 9 [1] |
| Crew | 12 [1] |
| Cruising speed (kn) | 10 [1] |
| Nitrox | Nitrox membrane system; oxygen and rebreather support published [1] |
| Amenities | Air-conditioned ensuite cabins; Satellite telephone; Camera storage and charging [1] |
| Diving facilities | Dive skiffs; Two Bauer compressors; Camera rinse tanks [1] |
| Safety equipment | GPS; Radar; Life rafts; First aid kit; Diver locator systems; Firefighting system [1] |
| Business email | info@underseahunter.com [1] |
| Business telephone | +506 2228 6613 [1] |
| Length discrepancy | Specification table lists 129 ft / 39 m; introduction rounds to 130 ft / 40 m. Normalized value follows the specification table. [1] |
| Research deployment | Operator states Argo is on a global National Geographic Pristine Seas expedition and unavailable at Cocos for the foreseeable future. [1] |
| Retired submersible | The operator states the DeepSee submersible has retired from service. [1] |
| Photograph source | https://underseahunter.com/wp-content/uploads/2022/03/Argo_home.jpg [2] |
Sources
- Undersea Hunter — Argo specifications and current expedition statusoperator · accessed 2026-10-19
- Undersea Hunter — fleet overview and Argo photographoperator · accessed 2026-10-19