Tiedemann's Diving Center

56 Gardiners Avenue
Levittown, NY 11756
Phone: 516-796-6560
Fax: 516-740-0705
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Tiedemann’s has been Long Island’s premier scuba diving education facility since it was founded as Underwater Advisors Inc. in 1968. Because using the proper equipment is vital to scuba, Tiedemann’s opened a small retail shop in 1981, which it maintains to help keep scuba accessible and affordable.

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