Located in Hagerstown. See course offerings, equipment, services, and photos.

Based in Frederick, with instruction, online newsletter, dive travel, and local dive information.

Full-service PADI 5-Star dive center in Annapolis. Offers instruction, travel and an online newsletter.

Based in Annapolis with information on technical training, including decompression, technical nitrox, extended range, cavern and cave diving.

A PADI 5-Star instructor development center providing scuba sales, services and training. Includes instructor profiles, store hours, and map to location in Gaithersburg.

The University of Maryland's SCUBA club. There is information ranging from apparel, to trips and training, to events.

Equipment, classes, dive travel trips, local dive trips, Maryland and Delaware wreck dives, air and nitrox fills, repairs, and rentals.

PADI scuba training in Southern Maryland. Find class schedules, dive trips and FAQ.

Located in Hagerstown, with course offerings, upcoming events, an online store, and photos.

Snorkeling and scuba classes from beginner to instructor; equipment sales and service; underwater video and photo; travel.