Whale watching tourism can provide conservation funding and public engagement but causes measurable welfare harm when boats approach too closely, disrupt feeding or rest, or expose whales to excessive vessel noise.
Whale watching occupies an ethically complex space: well-regulated operations provide conservation funding, public empathy and research opportunities, while poorly managed operations cause measurable disruption to the animals that attract visitors. Behavioral disruption during feeding reduces the energetic benefit that foraging was intended to provide. Disruption during rest prevents the recovery that cetaceans require after energetically demanding activities. Acoustic pollution from engines interferes with the communication that is fundamental to cetacean social life. The evidence base for welfare harm from poor whale watching practice is substantial; the solution is not to end whale watching but to ensure regulations on approach distance, speed, engine use, time limits and vessel numbers are set appropriately and enforced consistently across all jurisdictions.