Shark-Watching Tours Boost Lasting Conservation Habits

A two-year Hawaii study suggests ecotourism can shift visitor behavior, though the findings come from a single published study.

Updated on Nov. 5, 2026 in Environmental

Clear turquoise water over a volcanic reef with a grey reef shark gliding in the shallows and a green ridgeline in the distance. — A two-year University of Sydney study found tourists who joined a shark-watching tour on Oʻahu were about 40% more likely to adopt conservation habits. AI Illustration. Upload story photo >

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A University of Sydney study published in npj Ocean Sustainability found that tourists who joined a shark-watching experience on Oʻahu, Hawaii, were about 40% more likely to adopt conservation behaviors two years later than a comparison group. This is a published research finding, not a new product or policy.

Why it matters

The findings test whether ecotourism can translate a single outing into lasting conservation habits, at a time when global shark populations have fallen sharply. The study hints that wildlife tourism could become a practical lever for conservation in coastal communities that depend on visitors.

The study compared survey responses at baseline and two years later between shark-watching participants and a Waikīkī Beach comparison group, controlling for demographics, prior conservation involvement, and dropouts. The headline 40% figure is a likelihood difference between the groups, and the sample size and effect confidence intervals were not provided in the source material.

The players

University of Sydney

A research university in Sydney, Australia, whose researchers led the study on shark-watching and conservation behavior.

npj Ocean Sustainability

A scientific journal that published the study on ecotourism and conservation outcomes.

The details

Shark-watching participants snorkeled or freedived with a mask and snorkel, accompanied by a marine biologist, so they could observe sharks up close in the water. Researchers surveyed both the shark-watching group and a beach comparison group at the start of the study and again two years later. The analysis adjusted for demographic characteristics, prior conservation involvement, and participants who dropped out during follow-up.

Follow-up surveys were conducted two years after the ecotourism experience.
Global shark populations declined 71% over the last 50 years.

The Tech Race

Shark-watching ecotourism is a conservation-through-engagement approach that sits alongside protection measures and population monitoring efforts. This study adds behavioral evidence to a field that has largely relied on population counts and policy measures.

Visitors who take part in guided shark-watching snorkel or freedive trips may be more likely to adopt conservation habits afterward, according to this study. Availability, pricing, and operator-level details for such tours were not included in the source material.

The takeaway

Watch for whether follow-up work confirms the 40% effect size and tests whether it holds beyond two years. Travelers considering shark-watching trips can look for operators that include a marine biologist, as the study's experience was built around that format.