The certification process for a Open Water Diver is as follows:

  • Purchase your Open Water Certification course, here from our online store
  • Create student account on the SDI TDI Website - coursework will be completed online. 
    • See How to Enroll for instruction on enrolling as a R&R Marine student
  • In pool training in West Roxbury, MA - scheduling is done via email
    • ​Bring completed medical and liability waivers
  • Two days of certification dives in open water with a total of 4 dives, typically these are done on Cape Cod
  • Certification cards are printed at the shop upon successful completion of all course requirements

If you are already have an Open Water certification and are looking to take a more advanced class, the process is similar, but can vary. For more information, or to determine what the best course for you is email us at


Same Planet, Whole New WOrld 

If you answer yes to any of the questions on the medical form, the Physical Examination Guidelines are included.   

R & R Marine 

Medical and Liability Waivers MUST be filled out and brought to first pool session   

COurse offerings 

Calendar is for reference, all scheduling is done via email. In water training has capacity limits, and open water is subject to weather conditions. 

​SCUBA Discovery
Open Water Diver
Advanced Adventure Diver
Advanced Diver Development Program
Advanced Buoyancy Diver
Boat Diver
Computer Diver
Computer Nitrox Diver
CPR 1st
Deep Diver
Dry Suit Diver
Equipment Specialist
Ice Diver
Marine Eco-Systems Awareness

Master Diver
Night- Limited Visibility Diver
Search and Recovery Diver
Shore and Beach Diver
Underwater Hunter and Collecting
Underwater Navigation Diver
Underwater Photography
Underwater Videography
Wreck Diver
TDI Nitrox Diver