Oceanwide Expeditions vs Poseidon Expeditions: which is better?

No score and no verdict of ours: what Oceanwide Expeditions and Poseidon Expeditions each publish on their own websites, read 9 November 2026, topic by topic, each line linked to the page it came from.

Oceanwide Expeditions vs Poseidon Expeditions: which is better?

Neither is better for everyone: Oceanwide Expeditions sails four ships and lets solo travellers share a cabin at no extra cost, while Poseidon Expeditions sails one ship, Sea Spirit, with 114 passengers; it prices Classic Antarctica, 28 November to 9 December 2026, from US$8,846 per person with 25% off.

What is each line?

Oceanwide Expeditions runs polar expedition voyages in the Arctic and Antarctica on its own fleet and says it began in 1993 from a university research programme in the northern Netherlands. Source

Poseidon Expeditions was founded in the UK in 1999 and runs polar expedition cruises under its own name on one ship, M/V Sea Spirit. Source

Which ships does each line sail?

Oceanwide Expeditions sails m/v Hondius, m/v Ortelius, m/v Plancius and the sailing vessel s/v Rembrandt van Rijn; it has signed a letter of intent for two eco-sail expedition vessels from 2029. Source

Poseidon Expeditions sails one ship, M/V Sea Spirit, an all-suite ship with 54 suites; it has put its North Pole icebreaker cruises on hold since 2022. Source

How many guests are on board?

Poseidon Expeditions carries 114 passengers on Sea Spirit with 72 crew; it also describes the ship as having a maximum capacity of about 100 guests. Source

Oceanwide Expeditions does not publish this on the pages read.

Where does each line sail?

Oceanwide Expeditions sells named voyages to the Antarctic Peninsula, the Antarctic Circle, the Weddell Sea, the Bellingshausen Sea, South Georgia and the Falklands, Svalbard, Northeast and East Greenland, Iceland and the North Sea. Source

Poseidon Expeditions sells named voyages to the Antarctic Peninsula, across the Antarctic Circle, to the Falklands and South Georgia, Svalbard, East and West Greenland and Iceland. Source

What ice class are the ships?

Oceanwide Expeditions says Hondius holds Polar Class 6 and Ortelius UL1 (both equivalent to 1A-Super) and Plancius ice-class notation 1D; it calls Hondius the world's first-registered Polar Class 6 vessel. Source

Poseidon Expeditions does not publish this on the pages read.

Who leads the landings?

Oceanwide Expeditions puts an expedition leader in charge of naturalists, scientists and guides, with one mountain guide to every 6 to 8 skiers on ski mountaineering voyages. Source

Poseidon Expeditions gives an expedition staff-to-passenger ratio of 1:9; its team includes naturalists, wildlife biologists, geologists, historians, ornithologists and a doctor. Source

How much time ashore?

Oceanwide Expeditions includes all shore excursions and Zodiac activities, with hikes of about 2 to 3 hours and long hikes of about 6 hours. Source

Poseidon Expeditions says it takes all guests ashore together with no group rotations, normally averaging two activities a day and around 2.5 hours off the ship per passenger, weather permitting; in Antarctica no more than one hundred guests land at a site at once. Source

What can you do off the ship?

Oceanwide Expeditions includes camping (8 to 30 campers), kayaking, snowshoeing, mountaineering and a photo workshop free on Basecamp voyages; snowshoeing and hiking carry no surcharge, diving costs extra and select Ortelius voyages use helicopters. Source

Poseidon Expeditions includes Zodiac cruising and hiking; its Sea Kayak Club and Antarctic camping (30 campers per voyage, ages 18 and over) cost extra and are booked in advance. Source

What does a voyage cost?

Oceanwide Expeditions prices Antarctica Basecamp on m/v Hondius, 12 nights round trip from Ushuaia, 23 November to 5 December 2026, from 10,150 USD per person in a Quadruple Porthole cabin. Source

Poseidon Expeditions prices Classic Antarctica, 12 days on Sea Spirit from Ushuaia, 28 Nov to 9 Dec 2026, from US$8,846 per person with 25% off and a free upgrade. Source

What does the fare include?

Oceanwide Expeditions' fares include all meals with snacks, coffee and tea, all shore excursions and Zodiac activities, lectures, free use of rubber boots and snowshoes on Plancius, Ortelius and Hondius, port charges and taxes; airfare, insurance, wifi, bar charges and gratuities are extra. Source

Poseidon Expeditions leaves flights to and from its ports, travel insurance and gratuities out of the fare, suggesting 31 USD per person per day for gratuities; kayaking and camping cost extra. Source

What do solo travellers pay?

Oceanwide Expeditions charges single occupancy at 1.7 times the Twin or Superior cabin rate, or lets solo travellers share a Twin, Triple or Quadruple cabin at no extra cost in male-only or female-only berths. Source

Poseidon Expeditions charges a single supplement for a cabin to yourself, offers Single Suites and matches same-gender solo travellers through its Request-Share programme, waiving the supplement if no cabin-mate is found. Source

What insurance do you need?

Oceanwide Expeditions strongly recommends baggage, cancellation and personal insurance, which its fares do not include. Source

Poseidon Expeditions requires comprehensive travel insurance covering polar cruise travel, with evacuation and repatriation cover of no less than 200,000 USD per person on Arctic and Antarctica cruises. Source

Can children come?

Oceanwide Expeditions gives children under 16 sailing with parents a 40% discount in Grand Suite, Superior, Triple and Quadruple cabins on request, with some voyages excluded. Source

Poseidon Expeditions says families with children are welcome in principle, with no minimum age or family programme stated; camping ashore in Antarctica is for ages 18 and over. Source

When is each not the fit?

The limits below are published by each line on their own websites.

• Oceanwide Expeditions: not the fit if you count on camping or kayaking on any departure: each needs a minimum group (8 campers, 4 kayakers) and camping is capped at 30. Source
• Poseidon Expeditions: not the fit if you require walking assistance: it advises such guests to strongly consider not joining. Source

How do their reviews compare?

Their figures per platform, read 9 November 2026, each from a listing under the line's own name; a whole-company profile is marked. Figures are never added together.

• Oceanwide Expeditions: Google: 4.5 out of 5 from 66 reviews. Read 9 November 2026.
• Poseidon Expeditions: Google: 4.8 out of 5 from 36 reviews; Trustpilot: 4.5 out of 5 from 595 reviews, newest 3 November 2026. Read 9 November 2026.

The lines at a glance

One card each, as on every Uncompromised Travel expedition page: what each sells, why to choose each, what to ask for and the limits each publishes.

Richard Jasinski · Uncompromised Travel · written from Valencia · first published 9 November 2026 · updated 9 November 2026