Manta rays are a protected species in Hawaii and we absolutely do not allow any touching, chasing, or harassing of the manta rays.
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It is best to approach mantas slowly from their side allowing the animal to see you while it can maintain a clear path of travel ahead. Never chase after a manta ray. If you stay still they often come back for a closer look at you. Like you and I, mantas appreciate their personal space.
The short answer is no; manta rays don't pose much of a threat to humans in terms of physical harm. Unlike other species such as sharks or stingrays, which may attack if provoked or startled, manta rays are typically passive and docile animals who do not display aggressive behavior towards people.
Lifespan & ReproductionGestation is thought to last around a year. Although manta rays have been reported to live at least 45 years, not much is known about their growth and development.