Manta ray tourism is a growing industry in tropical diving destinations, and the welfare of individual manta rays depends significantly on how tour operators manage diver interactions.
Manta ray tourism demonstrates that wildlife can be worth far more alive than dead, but this economic argument only holds if the tourism itself does not compromise individual welfare. Poorly managed diver interactions cause documented behavioral changes including early departure from cleaning stations, where mantas receive essential parasite removal services from cleaner fish. Repeated disturbance of cleaning station use can compromise immune health. The precautionary principle supports respecting approach distance guidelines even in the absence of certainty about manta ray sentience and suffering capacity, given that the cost is low and the potential welfare and conservation benefit is significant. Operators who train divers in respectful observation protocols and limit group sizes tend to have better individual manta welfare outcomes and more successful long-term tourism operations.