The Extended Range course is the first major step in your journey to really deep dives. After the course, your depth limit will increase to 45 m, the possible decompression time is 25 minutes and the gases you can use for decompression are nitrox with high oxygen content or pure oxygen. In this course, the main emphasis is on perfecting your swimming technique in a two-bottle configuration, procedures specific to technical diving, and learning how to plan and execute dives requiring decompression. The course takes place in Dahab, Egpit.