145 dive sites in 19 countries have records of cuttlefish.
9 confirmed by two or more independent sources, 136 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 20 cuttlefish sites in PhilippinesDive sites in Philippines
Cuttlefish sites in United KingdomDive sites in United Kingdom