Manta ray night snorkeling is a Kona thing. The Big Island's west coast is the only place in Hawaii with dedicated nightly manta tours — the other islands see mantas rarely and don't run manta-specific night trips.
The one reliable manta destination on Earth. Nightly tours out of Kona at Manta Village and Manta Heaven.
These islands don't run dedicated manta night snorkels. Listed for honest context — not as equivalent options.
Occasional manta sightings on daytime snorkel and dive trips — no dedicated manta night snorkel operators.
Very rare manta encounters. No commercial manta night snorkels currently operating.
Very rare manta encounters. No dedicated manta night tours on the island.