Le Trou du Souffleur is a cave-and-reef dive in Martinique, built around a shallow blowhole that breathes when swell pushes water through the opening. The surrounding reef drops away into a nursery zone and makes a relaxed drift route when the sea is calm, with the cave, reef edge, and passing predators giving the site a lot of variety for a short boat dive. It is a compact site, but the changing light, shallow cave, and drifting reef keep it interesting from the first glance to the last.