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Welcome to UDI!

We are Boston's oldest dive shop, with 50 years of experience in SDI and ERDI training, specializing in Public Safety equipment supply & servicing, and drysuit/wetsuit repair & tailoring! 
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Our Team

Learn more about our awesome staff and dive instructors!

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Dive Sites

The best places to dive around Massachusetts!

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Courses

Get certified to dive in open water 

and trained in 

advanced specialties!

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DIVE TRIPS

Join us for local fun dives, distance trips, and more! 

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Equipment

We've got the gear you need to dive comfortably in warm or cold water, available for rent or purchase! 

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Servicing

We service regulators, BCs, masks, tanks, wetsuits, drysuits, and more!

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Public Safety

We keep Fire & Police Dept equipment up to date, do SCBA training and compressor servicing!

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Schedule

Check out the dates for our classes, open water dives, events, and sales!

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News & Events

Stay up to date on our community news and events!

Get In Touch

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Contact Us!

 

617-666-0410

 

59 Washington St

Somerville MA 02144

Mon-Tue & Thu

10am - 2pm

 

Friday - 10 am - 4pm

Saturday 10 am - 6pm

(Closed on Wednesday and Sunday) 

Email Us!