Editorial Independence
Antarctic Peninsula Cruise Guide produces rankings and editorial content independently of any commercial relationship with the operators listed. No operator has paid for placement in any ranking on this site. No operator has provided funding, sponsored content, advertising revenue, or anything of monetary value in exchange for coverage or ranking position.
Ranking Criteria
We rank Antarctic Peninsula expedition cruise operators on six criteria. The table below shows each criterion, the data sources used, and the weighting applied.
| Criterion | What We Measure | Data Source | Weighting |
|---|---|---|---|
| Ship Capacity | Passenger count relative to IAATO 100-pax shore landing rule | Operator specs, IAATO membership records | High |
| IAATO Compliance | Active membership, biosecurity programme, absence of violations | IAATO public records, expedition reports | High |
| Shore Time | Documented average hours off-ship per day | Operator itinerary data, published expedition logs | High |
| Expedition Team | Guide-to-guest ratio, naturalist qualifications, leader credentials | Operator-published expedition team bios | Medium |
| Available Activities | Range of included and optional activities | Published itinerary and activity catalogues | Medium |
| Price Transparency | Published pricing, clarity of inclusions, value relative to experience | Publicly listed fares and inclusions | Low |
Why Ship Capacity Is Weighted Highest
The experience of stepping onto Antarctic soil is the primary purpose of an Antarctic expedition cruise. IAATO's 100-passenger simultaneous landing rule means that passenger capacity directly, mechanically determines how much time each guest spends ashore. A 114-passenger vessel where all guests land simultaneously delivers more Antarctic time than a 200-passenger vessel operating a rotation system — regardless of how good the food or entertainment is.
The 500-passenger prohibition is categorical: passengers on these vessels never step onto Antarctic soil. We list these operators for completeness with transparent disclosure of this limitation.
Update Schedule
Rankings are reviewed annually before the start of each Antarctic season, typically in October or November. Pricing data is updated to reflect each operator's current-season published fares. Capacity and fleet data is verified against IAATO membership records at the time of update.
Material changes (change of vessel, loss of IAATO membership, documented violations) trigger an immediate out-of-cycle review. Last updated: April 2026.
Corrections
Operators may submit factual corrections to data presented about their vessels or programmes via our Contact page. Corrections must be accompanied by verifiable documentation (published specifications, IAATO records, official itinerary materials). Factual corrections are reviewed and, if verified, applied within 14 days. Ranking positions are not subject to correction requests — these are editorial determinations based on our methodology.