Blue Horizons Dive Center - the premier Northeast scuba shop in the Philadelphia, Pennsylvania metro area


Contact Blue Horizons Dive Center



11:00 a.m.- 7:00 p.m.


11:00 a.m.- 7:00 p.m.


11:00 a.m.- 7:00 p.m.


11:00 a.m.- 7:00 p.m.


11:00 a.m.- 7:00 p.m.


10:00 a.m.- 5:00 p.m.



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Blue Horizons Dive Center - Chris Donnelly



During a career day presentation in grade school, Chris was introduced to scuba diving during a presentation given by a local dive shop owner. Captivated and motivated by the idea of scuba diving, Chris spent two years convincing his parents to let him get certified. At the age of 15, he did.

It was the right move. Today — a few decades later — he and his wife Kelly have spent their professional careers in the scuba industry and currently own and operate Blue Horizons Dive Center, as well as 25 Fathoms International, Inc. Chris has been working as a dive professional since he was 19, teaching classes and on working on local boats.

In 2004, Chris became one of the youngest candidates accepted into the Course Director Training program. Today, as a published PADI Course Director and Technical Diving Instructor Trainer, Chris spends most of his time training would-be scuba enthusiasts to become instructors and technical divers. Chris’ resume includes the certification of more than 1100 students and the execution of more than 3000 dives, including the famous Andrea Doria.

Chris is also a Manufacturers Sales Representative for 3 major brands, Sherwood, Akona and Princeton Tec. He frequently works as a consultant with other dive centers across the country, guiding them to success. When not teaching, Chris can be found exploring the globe in search of his next adventure. He enjoys everything from local diving between Massachusetts and North Carolina, to reef diving in the Caribbean, and specifically expedition-style technical diving.

 Wreck Diving and Lobster Diving are some of his favorites. If you are new to diving or have been around for awhile, feel free to reach out to Chris with any questions, he is happy to help you plan your next adventure.

Blue Horizons Dive Center - Sheldon


Sheldon Bender was certified as an Open Water Diver in 1979. He became a PADI Divemaster in 1997 and a PADI Assistant Instructor in 2001. He holds numerous PADI Specialty certifications.

Since becoming certified, his diving experiences have included the wrecks of New Jersey, the reefs and walls of Grand Cayman, Lake George, New York, as well as trips to Bonaire, Cozumel, Key Largo and the St. Lawrence River.

Sheldon considers himself to be fortunate, because he had great instructors during his diving training, from Open Water through Tec-40 levels. His current, primary focus is to assist the Blue Horizons instructional staff; Sheldon wants to contribute to the development of new divers, helping to provide a safe, comfortable and enjoyable learning environment.

Blue Horizons Dive Center - Glenn


Glenn is a PADI IDC Staff Instructor who has been part of the Blue Horizons crew since 2001, when he wandered into the store to inquire about rebreathers.

His fascination with the underwater world began when he was a child with Mike Nelson on Sea Hunt, Jacques-Yves Cousteau and National Geographic magazine and documentaries. He became a certified diver in 1980, diving mostly in the Gulph of Maine and the Caribbean.

After spending a lengthy amount of time diving in the Bay Islands of Honduras in 2001, Glenn’s professional development soon followed. He loves teaching individuals and/or small groups, gladly working with students who will benefit from Glenn’s intense, one-on-one approach to teaching. The teaching/learning goal is to guide the student through his or her challenges, while keeping the student safe and engaged during the learning process.

Glenn’s love of diving keeps him involved, either learning from those with greater knowledge & experience or by teaching those with less knowledge & experience.

In addition to introductory scuba certification, Glenn teaches many advanced diving specialties and is one of Blue Horizons certified Handicapped Scuba Association instructors who has been honored to participate in the Wounded Warrior Program.

Blue Horizons Dive Center - Bernie


Bernie is a 60-plus-year-old scuba enthusiast, husband, father and grandfather. Married for more than 40 years, and with two children and two grand children, Bernie is a Vietnam-era veteran of the U.S. Army Airborne.

Bernie was certified as a diver in 2006, in Cozumel, Mexico. With drift diving being his favorite form of scuba, he loves exploring Cozumel’s elaborate reef system, its diverse ecosystem with an abundant variety of coral and marine life — from large parrot fish and moray eels to manta rays and eagle rays. A major professional highlight for Bernie is watching new divers becoming certified and enjoying this great hobby & sport.