- 120 Chelmsford Street Chelmsford, MA 01824 (978) 256-2300 Northeast Scuba is located in Chelmsford, Massachusetts and is a full service PADI 5 Star IDC Training Facility. We provide sales, rentals, instruction, repair services, book local dive charters and run dive trips to exotic locations. Check out our product lines for a wide variety of name brand and top-of-the-line diving equipment. See ...northeastscuba.com