This certification denotes that you've reached the highest recreational diver level in the PADI System of diver education.  PADI Master Scuba Diver indicates you have a significant amount of training and experience in a variety of dive environments.

What do I need to start?
• PADI Open Water Diver certification (or qualifying certification from another organization)
• PADI Advanced Open Water Diver certification (or qualifying certification from another organization)
• PADI Rescue Diver certification (or qualifying certification from another organization)
• 50 logged dives
• Five PADI Specialty course certifications
• Minimum age: 15 years old (12 for Junior Master Scuba Diver)