122,072 Became 113,518 — And Everyone Still Calls It an Antarctic Tourism Boom
Antarctic tourism has now declined for three consecutive seasons, according to IAATO-affiliated final figures: 122,072 visitors in 2023-24, 118,491 in 2024-25, and 113,518 in 2025-26, a cumulative two-year drop of 7.01 percent. Yet the Antarctic and Southern Ocean Coalition (ASOC) — the environmental coalition pushing hardest for stricter regulation — described the same period, in its closing press release from the 48th Antarctic Treaty Consultative Meeting, as "the massive surge in visitor numbers," and numerous travel outlets echoed the phrase as an "explosive increase." This split between measured reality and prevailing narrative traces back to a 2025 academic forecast projecting 2033-34 visitor numbers of roughly 285,000 under a conservative scenario and 450,000 under a less conservative one, a projection whose authors explicitly flagged that the upper figure incorporates pent-up pandemic demand likely to diminish — a caveat that vanished as the number circulated through secondary coverage. Once the aggregate-growth narrative collapses, what remains are the questions that actually matter: a landing-visitor concentration of roughly 75 percent of all traffic, a governance vacuum resting on largely voluntary guidelines, and the biosafety exposure revealed by a hantavirus cluster aboard the expedition cruise ship M/V Hondius, which departed Ushuaia, Argentina in April 2026. This piece does not treat the volume decline as proof that regulation is unnecessary; instead, it examines how a regulatory push built on the wrong numbers ends up undermining its own legitimacy. I argue that the real risk in Antarctic tourism is not an "explosion in numbers" but the fact that a six-figure visitor base has already become the norm while the rules to manage it remain absent.