The Blue Hole is a warm, quiet and clearwater area. As they descend deep into the water, the lights and colors gradually disappear – red then orange and yellow.
In the end, it was only green as the name Blue Hole. The light returns at about 45 meters in depth. It is the best time in the morning when the sun is high and shines light directly on the Blue Hole. Dahab used to be just an ordinary fishing village, but today it has transformed itself with luxurious restaurants springing up to welcome visitors from all over the world. Deep dive shops, hotels and restaurants are located close together on the coast and no one knows the exact number.
In fact, there are about 52 registered businesses, and there are also deep diving schools operating without license. Due to competition, the price at Blue Hole is quite low. The price for a beginner to deep dive is 200 euros (244 USD), while diving in a guided reef is 25 euros. Visitors who choose to purchase 5 deep dive tickets will get one more ticket bonus!
The maximum limit for deep diving with compressed air is 56 meters. To avoid accidents, the Egyptian Deep Diving Association stipulates not to dive more than 40 meters with compressed air. In Dahab, however, visitors can afford to buy a depth! Just spending 100 euros is easy to find a guide ready to secretly follow visitors into the tunnel to any depth to assist without requiring the presentation of a diving certificate or diary Deep diving sign that records details of each tourist dive.
When down to a depth of 30 meters, inexperienced divers can fall into a state called “nitrogen narcosis”, which is a disorder of the body due to increased nitrogen levels in the blood leading to head spinning, incapable of judging or even people experiencing the feeling of being drugged. A person who has been able to tolerate alcohol like a diver begins to get used to the high concentration of nitrogen in the blood. But when in deep water, oxygen can become toxic, causing the diver to vomit, dizziness, cramps (cramps) and eventually unconsciousness.
The diver has to remain at certain depths for a certain amount of time in order for the body to get used to the decreasing pressure. As a rule, divers are not allowed to climb up faster than 10 meters per minute. Because when they emerge too quickly, air bubbles form in the blood causing pain in the elbows, knees and shoulders. These air bubbles can clog blood vessels and tissues in the brain, heart, lungs and spinal cord. The last 10 meters to reach the surface of the water contain many dangers to the life of the diver.
Heikai Tawab, director of the Hypertensive Oxygen Treatment Medical Center in Dahab, advises those who dive into the water too quickly to be taken to the pressure chamber immediately to remove air bubbles in the blood.