Gulf of Chiriquí

Almost every dive starts with a boat ride, and the length of the crossing sets the shape of the day. An inshore two-tank trip stays among the nearer rock islands and is back by early afternoon. Reaching the outer sites means an early departure, a long open-water leg with tanks stowed for the duration, and lunch taken aboard or on a beach. Sea state decides more than the calendar does: when the outside is rough, boats work the sheltered islands instead and the offshore plan slides a day.

The topography splits between inside and outside. Inshore, rocky ridges and boulder fields run out into sand channels with coral growing in patches on the shallow tops, and the water often carries a green, nutrient-heavy cast. The outer islands are steeper, with rock faces dropping into blue and current wrapping the points. Hannibal Bank is a different proposition again, with nothing showing above water to line up on, so you descend a line or into open blue and rely on the skipper to put you on the rock.

The characteristic dive is a hang rather than a tour. You settle behind structure out of the flow and watch what comes past, and as much happens overhead as in front of you, where bait balls form and collapse and hunting fish cut through them. None of it runs to a schedule. Plenty of dives end quietly on the reef, and the ones that deliver often do it early, before the group has drifted off the high ground and the guide calls it.

Treat it as a numbers game across several days rather than a single outing, since the offshore sites reward repetition and one blown-out morning is not a verdict on the place. Mixed groups still work, because less experienced divers can stay on the inner islands while the rest go outside. Anyone hoping for consistently clear water and unhurried macro photography should know that visibility swings too widely here to build a photo trip around.