947 dive sites in 62 countries have records of manta rays.
155 confirmed by two or more independent sources, 792 reported by one source.
Sites are ranked by evidence: first by how many independent divers logged the animal there, then by how many independent sources confirm it. "Best" here means most independently confirmed, nothing more.
All 23 manta ray sites in Costa RicaDive sites in Costa Rica
All 45 manta ray sites in PhilippinesDive sites in Philippines
All 14 manta ray sites in MozambiqueDive sites in Mozambique
All 47 manta ray sites in United StatesDive sites in United States
All 17 manta ray sites in South AfricaDive sites in South Africa
Manta ray sites in United KingdomDive sites in United Kingdom
Manta ray sites in Dominican RepublicDive sites in Dominican Republic
Manta ray sites in French PolynesiaDive sites in French Polynesia