Project Description

We are Boston's premier diving education center for Deep Diving Classes and other scuba lessons in Massachusetts and New England!

About The Course:


There are endless reasons for a diver to want to push their boundaries and venture deeper. There are amazing wrecks and reefs just waiting for you down there to explore what they have to offer. The deep diver course gives you the experience, techniques, and ability to be prepared for the new challenges you'll face by going deeper. The underwater world is very different once you start going deeper than 60ft. Nitrogen narcosis, decompression planning, and air consumption have more rigid requirements at depth. These are just a few of the reasons why diving deeper is much safer with the proper training. The Deep Diving class includes one class session, one pool session, and a minimum of 3 open water dives. These dives can sometimes be completed from shore but due to the depth requirements often need to be completed as a boat dive.

Our deep diving course is unlike ANY OTHER and trains you not only to experience added depth in a safe environment but also how to plan for and mitigate potential added risks. Our deep diving program teaches both new equipment techniques and skills that other deep-diving courses don't even address.


Delayed Surface Marker Buoy (DSMB) Deployment - A DSMB is a brightly colored inflatable tube that can be inflated and deployed while at depth. This tube is attached to a line and spool you hold at depth so that you can maintain contact and control of it while it is at the surface. This tool and the technique are paramount for deep divers to master so in the event they get separated from their team or the ascent line to their surface support (i.e. a dive boat) they can quickly and clearly mark their location without having to quickly ascend. A skill that takes practice to master but is of the utmost importance to deep divers.

Redundant Gas Supply Orientation and Use - As depth increase so does pressure. This added pressure causes a diver to consume more gas the deeper they go. At 66 feet a diver will consume 3x the amount of gas they do at the surface and 4x in 99 feet of water. This added gas consumption can create a big problem if you need to share air at depth. The added depth can also cause a regulator to have a drastic reduction in performance if more than one diver is breathing hard on it such as in a real gas sharing scenario. Lastly, it is also very reassuring to have a completely redundant supply of gas in case yours fails so you still have the ability to ascend at a controlled rate and perform a proper safety stop

This is why we equip and teach all of our deep-diving students to use Pony Bottles. A pony bottle is a small cylinder (1/3 to 1/2 the size of your primary tank) that has its own independent regulator system. This additional bottle can take a bit of getting used to but adds a tremendous amount of safety to deeper dives and we recommend it to any of our divers venturing deeper or in poor visibility conditions that could lead to team separation such as scallop diving.

Advanced Dive Planning - The days of jumping into the water without a well-vetted dive plan are over. How much gas do I need to have left in my tank to have a realistic chance of getting myself and my team to the surface in an out of gas scenario? Does my team have enough gas to help me should I have a lost gas failure? What is our emergency plan should the team get separated at depth. How will redundant dives affect my decompression limits based on previous dive times and depth? How can I plan for a multilevel dive with my team? What likely failure scenarios does this deeper dive introduce and how can my team better prepare for them? These are not hard questions to answer but they do require some thinking and know-how which is all addressed during our deep diving program.

This course only runs from May - October.

Please use the link in the right-side column to signup and schedule or you can sign up and schedule in-person, over the phone or via email.

Before your Deep Diving Course, there is a bit of paperwork you’ll have to fill out. This program requires a minimum of 5 distinct forms. You can find the forms below and complete them ahead of your pool session, most important is the “SCUBA – MEDICAL FORM“. Go through the medical form now and check to see if you need to answer “YES” to any of the questions. If so no big deal – you’ll just need to get a doctors’ sign-off before we can let you in the water. The doctors’ note is in the additional “PHYSICIAN'S RELEASE” file – along with guidelines for your physician. Remember if you answer “YES” to anything in the medical it is NECESSARY to get a doctors’ note BEFORE getting in the water. It’s also important to note if a physician's signature is required, only a medical doctor's (MD) signature will be accepted.






Additional forms as required:



The Deep Course has 3 components - classroom, pool, and open water dives. There is one classroom session, one pool session and two days of open water diving. Please check the schedule before signing up to make sure you will be able to make the classes ahead of time.

Please use the link in the right-side column to signup or you can sign up and schedule in-person, over the phone or via email.


The class training will take place at:

East Coast Divers, 213 Boylston Street, Brookline MA


and the pool training is located at the:

Brookline Town Pool – 60 Tappan St., Brookline MA


The, minimum of, 3 open water dives will happen over 2 or more days and the locations will be weather and situationally dependent. These dives often happen as boat dives though there are some shore dive options. Directions to the, most likely, meeting points can be found on our "DIRECTIONS" page.

Private Courses

Interested in a private? We got you covered! Sign-up today!

Private courses are set up slightly differently than regular deep diving courses. The beginning process is the same – you’ll still be required to fill out the same paperwork but you won’t be tethered to our schedule. Instead, you can find out whenever works best for you and let us know so we can get the sessions scheduled – we can even schedule your pool training outside our normal pool hours*. Make sure to let us know in advance, as we have to rent the pool and make sure it doesn’t conflict with any other activities going on that day. If you do use the pool when we have it rented that’s perfect! There will be other people in the pool but you (or your group) will be working privately with your instructor.

*Additional fees (such as pool rental fees) may apply

Private Scheduling is done through Kim and Max in our training department at They will be in contact within 24 hours of any inquiries. If you need to contact us sooner please call us at 617-277-2217.

Private Pricing:

1 Person $780 per person - $780 total 3 People $500 per person - $1500 total
2 People $600 per person - $1200 total 4 People $420 per person - $1680 total


~Please reference the “BEFORE CLASS” tab for required paperwork~

Equipment & Gear Rentals

The Deep Diving course has an in-water portion that requires a full set of gear. If you have your own gear, we suggest making plans to carry all of that gear along with you. If not, rental equipment can be arranged but MUST be reserved ahead of time.

Availability fills quickly and spots are not guaranteed! We recommend registering and reserving rental equipment at least 2 WEEKS IN ADVANCE!

*We require that students have their own specialty-specific gear for several of our courses. This equipment is necessary for the type of diving that you will be embarking upon during, and post certification. Please refer to the prerequisites section below for a list of the gear you will need to own for this course. We offer a 10% discount to all of our students who purchase the required equipment for the class through us as well as our famed 60 day return policy that will ensure that you are happy with everything that you buy. We appreciate your support of your local dive shop, which allows us to continue operations and offer the services that we do today****

If you need to rent any gear other than that listed in the prerequisites, you can do so with us below! For anything else check out the our rental page

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  • Students must be 15 years or older.
  • This course is only available for certified divers.
  • A clear medical history or MD sign-off form.
  • Student must provide their own Mask, Fins, Snorkel, DSMB, Finger Spool, and WetNotes. All other equipment can be rented or is provided.

What's Included:

  • One class session & one pool session.
  • Two days of diving with 1 to 3 dives daily. Typically off a boat.
  • Internationally trained / certified instructor
  • Agency approved on-line course work.
  • Performance of skills such as safe descents, gas management, DSMB & Pony setup and use, deco time management, team skills safe ascents and more...
  • All deep diving specific equipment other than those listed in the prerequisites.
  • This program will cover the following skills: DEEP DIVING SKILL CARD

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