International Scuba operates two locations in the Dallas-Fort Worth area (Carrollton and Frisco, Texas), running PADI courses from Discover Scuba through professional Instructor Development. Confined water pool training takes place at their Carrollton facility, with open water dives at The Scuba Ranch in Terrell, Texas, at a maximum ratio of six students per instructor. The center's PADI Open Water Diver certification follows a three-step model: eLearning, pool training, and open water dives, and is offered in Basic, Deluxe (with Peak Performance Buoyancy) and Premium (adding Enriched Air/Nitrox) packages. The shop also offers a broad specialty course catalog including Wreck, Night, Dry Suit and Cavern diving, plus equipment service, rentals, and organized international dive travel.