Raso & Branco Islets: Raso Islet Dive Site – Cape Verde

Site Overview

Raso Islet is a expert-level wall dive site located off the Raso & Branco Islets coastline in Cape Verde, offering an extraordinary combination of volcanic underwater landscapes and rich Atlantic marine biodiversity. The site is accessed by boat from Mindelo (expedition departure), typically 28 to 33 minutes depending on sea conditions. Raso Islet reaches a maximum depth of 30 meters with the most productive diving occurring between five and 25 meters where the volcanic walls and reef structures provide shelter and feeding grounds for diverse marine species. The underwater topography features dramatic volcanic formations including vertical walls, overhangs, coral-encrusted pinnacles, and sandy channels that create a mosaic of distinct ecological zones. Marine life encounters commonly include Yellowfin Tuna, Nurse Shark, Sand Tiger Shark, Whitetip Reef Shark, along with numerous smaller reef species that inhabit the volcanic substrate. The water temperature ranges from 22 degrees in winter to 26 degrees in late summer, with visibility typically between 18 and 30 meters during the calmer months from May through November. Seasonal visitors including humpback whales from February to May and whale sharks from July to October add an extraordinary dimension to dives in this region. The site's position in the eastern Atlantic means it benefits from nutrient-rich upwellings that sustain prolific coral growth and attract large pelagic species year-round. Raso & Branco Islets is increasingly recognized as one of Cape Verde's premier diving destinations, offering uncrowded conditions and authentic Atlantic diving experiences that remain largely undiscovered by the broader diving community. The challenging conditions including strong currents, significant depth, and exposure to open Atlantic conditions demand experienced divers with appropriate certifications.