What makes it different
Unlike the islands closer to the port, Cayos Holandeses sits at the edge of the archipelago, meaning fewer boats and better-preserved reefs. The turquoise lagoon protected by the outer reef offers exceptional visibility for snorkeling.
What you'll see underwater
Hard and soft coral in good condition, tropical fish in noticeably greater numbers than in more-visited areas, and on good-visibility days, a chance of spotting larger species near the outer reef.
Who it's best for
Cayos Holandeses is the best option if you already know San Blas and want something beyond the classic day trip, or if snorkeling is your top priority over other activities.
How to get there and what to expect
Because of the distance, it's usually offered as a private full-day tour or as part of a multi-day itinerary. The detailed profile is in the Cayos Holandeses guide from San Blas Tours Panama, and if you're after the multi-day version aboard a private yacht, there's more detail in their private charters section.