Dahab: Blue Hole (Bells Entry) Dive Site – Egypt
Site Overview
Blue Hole (Bells Entry) is a expert-level cave, wall dive site located off the Dahab coastline in Egypt's Red Sea, offering an extraordinary combination of vibrant coral reef ecosystems and rich marine biodiversity in one of the world's most celebrated diving destinations. The site is accessible directly from shore, making it one of the most convenient sites in the region. Blue Hole (Bells Entry) reaches a maximum depth of 55 meters with the most productive diving occurring between five and 25 meters where the coral walls and reef structures provide shelter and feeding grounds for an incredible diversity of marine species. The underwater topography features dramatic coral formations including lava-formed cavern systems, vertical walls encrusted with soft corals, massive coral pinnacles, and sandy channels that create a mosaic of distinct ecological zones. Marine life encounters commonly include Eagle Ray, Napoleon Wrasse, Giant Trevally, Thresher Shark, along with numerous Red Sea endemic species that inhabit the coral substrate. The Red Sea's uniquely stable conditions, with water temperatures ranging from 21 degrees in winter to 28 degrees in late summer and visibility typically between 15 and 35 meters, create an underwater environment of extraordinary clarity and biodiversity. Seasonal visitors including oceanic whitetip sharks, hammerhead sharks, whale sharks, and manta rays add an extraordinary dimension to dives in this region. The Red Sea is home to over twelve hundred species of fish with approximately twenty percent endemic, and more than two hundred species of hard and soft coral that create some of the most vibrant underwater landscapes on Earth. Dahab is increasingly recognized as one of Egypt's finest diving destinations, offering the perfect combination of world-class marine life, excellent infrastructure, and reliable year-round diving conditions. The challenging conditions including strong currents, significant depth, and exposure to open water conditions demand experienced divers with appropriate certifications.
Dive Briefing
"The entry is made from the shoreline or jetty with a short surface swim to the descent point marked by the reef edge. The dive profile typically begins with a gradual descent along the reef wall to approximately 30 meters where the current-facing side offers the best marine life encounters in the nutrient-rich Red Sea waters. Eagle Ray are frequently observed patrolling the wall at 27 to 35 meters, while Napoleon Wrasse inhabit the coral gardens and overhangs throughout the mid-section of the dive. The cavern section is explored at approximately 25 meters where sunlight penetrates through entrances creating spectacular light effects. Your guide leads the penetration with torches while maintaining strict depth and time discipline. The coral substrate between 25 and 38 meters is encrusted with colorful soft corals, gorgonian sea fans, and Red Sea endemic hard corals that provide excellent macro photography opportunities between the larger species encounters. Giant Trevally can be found in crevices and ledges throughout the site. Your guide leads you progressively shallower along the reef contour, ensuring adequate bottom time for the safety stop at five meters. The final portion of the dive is spent exploring the shallow reef flat at three to eight meters where coral diversity is highest and sunlight creates ideal conditions for wide-angle photography. The safety stop is conducted along the upper reef before surfacing and swimming back to the shore entry point for a total dive time of approximately 50 to 60 minutes."
Signature Marine Life
Eagle Ray
Aetobatus narinari
Best: March, April, May
Napoleon Wrasse
Cheilinus undulatus
Best: March, April, May
Giant Trevally
Caranx ignobilis
Best: March, April, May
Thresher Shark
Alopias pelagicus
Oceanic Whitetip Shark
Carcharhinus longimanus
Best: March, April, May
Yellowfin Tuna
Thunnus albacares
Best: March, April, May
Safety & Hazards
- Red Sea current variability requiring constant awareness and SMB deployment capability
- Fire coral and sharp coral formations requiring careful fin and hand placement
- Venomous lionfish and scorpionfish on ledges requiring careful hand placement during wall dives
- Moray eels in crevices that may bite if provoked or hands placed in holes
- Strong surge near cavern entrances and shallow reef flats during Red Sea swell events
- Potential for nitrogen narcosis at deeper sections below twenty-five meters
Traveler Notes
Who is this for?
Blue Hole (Bells Entry) is reserved for expert-level divers with Rescue Diver certification or higher and extensive experience in challenging open ocean conditions including strong currents, significant depth, and remote locations with limited emergency support. The site presents serious challenges including depths reaching 55 meters, powerful Red Sea currents, and extended boat travel times that demand self-reliant diving skills and thorough emergency planning. Only divers with proven deep diving competence, excellent physical fitness, and the ability to make sound decisions under pressure should attempt this site. The rewards for expert divers are extraordinary: pristine walls with virtually no other divers, encounters with oceanic pelagic species rarely seen at more accessible sites, and the satisfaction of exploring some of the most remote and untouched dive sites in the entire Red Sea basin.
Quick Stats
Dive Logistics
- Big Blue Dahab
- H2O Divers Dahab
- Poseidon Divers
- Red Duck Dive Center
Photography Info
Best for: wide_angle, macro, low_light
Nearby Stay
Swiss Inn Dahab
Dahab • 1km away
Dahab Paradise
Dahab • 2km away