The beginner’s programme lets you dive to 9mtrs/40 ft. Open Water Scuba Diver course certifies you to dive to 18mtrs/60ft. The Advanced Adventurer course certifies you to dive up to 30mtrs/100ft and doing deep speciality would open diving to 40mtrs/130ft which is the max depth for recreational scuba divers. Deeper than 40mtrs dives can be done by experienced divers after doing their technical diving courses.