A manta ray is one of the largest and most graceful rays in the ocean. They’re harmless to humans and known for their wide “wings” and intelligent behavior. Kealakekua Bay is a stunning marine sanctuary on the west side of Hawaiʻi Island known for its crystal-clear water, rich coral reefs, and vibrant marine life — including occasional sightings of reef manta rays. Kealakekua Bay’s calm, clear conditions and reef diversity make it a popular daytime snorkel spot where mantas are possible sightings among many reef fish and turtles. While daytime manta sightings are less reliable, the evening/night manta snorkels (often nearer to Keauhou Bay or other Kona sites) significantly increase chances because mantas feed on plankton attracted to underwater lights. The name Kealakekua means “the pathway of the god.” The bay was home to a major heiau (temple) During the Makahiki season (a months-long festival honoring Lono), warfare was kapu (forbidden), and ceremonies were held in this area. The bay was a central spiritual site for those rituals. The bay is also known for the 1779 death of James Cook