Sidemount Diving

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INTRO SIDEMOUNT - $1000pp

XR SIDEMOUNT - $700pp

To view all the session times/dates click on "book now" to enter the booking page, choose the start date you're interested in, then click "book now" and "continue" to bring up the course schedule.

XR Sidemount is currently scheduled on an "On-Demand" Basis. To inquire about training and dates, please contact our training team at alex@ecdivers.com. If you have any other questions about the courses, please contact us.

Once you book your course, our team will register you for class materials. You will receive an email with a link to your materials from the agency (SSI or SDI/TDI). Our training team can be reached at alex@ecdivers.com if you have any questions about the course.

 

 

The Sidemount program provides you with the training necessary to independently plan and conduct dives, using Sidemount equipment configurations and techniques, within the depth limits allowed by your certification level and with an equally, or more, qualified dive team. This course will teach you how to dive with two (2) Sidemount cylinders to the depth you are currently certified to. It will also allow you to continue your training in a Sidemount configuration. For those that choose to, you can select the XR Sidemount course add-on to add advanced Sidemount diving skills to the course, including 3rd bottle rigging and use.

Checkout “Add-Ons & Enhancements” below for more info on the XR Sidemount Program!

 

Why dive Sidemount?

Sidemount diving is an adaptation to the traditional way scuba equipment is worn. It moves the scuba cylinder or cylinders from behind you to beside you. This has a list of benefits, including:

  • More streamlined equipment so it’s easier to move through the water.
  • Better balanced equipment, so it’s easier to change and hold positions.
  • You have better access to your cylinders, valves, and first stages, so it’s easier to see and manage any issues if they happen underwater. Since they are protected, issues are less likely to arise.
  • The whole system is modular, so it’s easy to replace or repair a single piece should an issue arise.
  • It’s also a great course for anyone interested in deep diving, technical diving, and cave or wreck diving because it’s so easy to carry additional gas once you learn the basics of the system.

The list really goes on and on. The sidemount equipment configuration can also be used in many different styles of diving. If you are diving to no-decompression limits but not beyond, many divers choose to dive with either one sidemount cylinder or two smaller sidemount cylinders. Deep divers, cave divers, and/or wreck divers will choose to dive with both full-size cylinders and perhaps even a stage bottle or two. For divers with difficulty carrying more than one cylinder at a time due to size or injury, many sidemount divers will enter the water and then put their gear on to avoid having to lift too much weight out of the water. This is a great option for divers with leg or back injuries or divers without the stature to lift large sets of doubles.

Before Class

Before attending your class you will need to complete some paperwork. The forms will be emailed to you for your review and can be completed by Eversign prior to your class.

Before enrolling in a class, you should take time to read and review the Diver Medical Statement Participant Questionnaire. The first page has If you have any YES answers on that page, review the associated section on the second page. If you have any YES responses on page 2 you’ll just need to get a doctors’ sign-off (on the Physicians Approval to Dive form) before you can participate in ANY in-water activities. It’s important to note if a physician’s signature is required, only a medical doctor’s (MD or DO) signature will be accepted per agency rules (no NP or PA signatures).

If you have any questions give us a call at the store on 617-277-2216 or shoot us an email training@ecdivers.com.

  • Minimum age of 18
  • Minimum certification of Open Water Diver
  • Diving medical signed by an MD

Private courses may be available off-season or during weekdays. Please contact Alex@ecdivers.com for more info.

NOTE REGARDING EQUIPMENT!!

If you are a drysuit diver, that’s GREAT! Because once you move from Sidemount to Deco training in New England, a drysuit is required equipment. If you are not a drysuit diver, it is not a quick transition from wet to dry. You’ll need to purchase a suit and gain at least 12 - 24 dives of experience to have a chance to lock in with the suit and be prepared to have the control you’ll need to succeed in a decompression class. Because we don’t deal with extreme depths, cold temps, and extended deco stops in Basic or XR Sidemount, both courses can be completed in a wetsuit. So if you are already a Drysuit diver, you should train Basic and/or XR Sidemount in your drysuit, but if not, you should start preparing to switch to a drysuit after completing Sidemount. When you join Basic and/or XR Sidemount in the coming weeks, it will benefit you to do the training in what you know, wetsuit, and then, after the course, head out to train the Sidemount skills slowly in your drysuit before heading into a deco program such as Extended Range or Advanced Nitrox / Deco Procedures.

FOR MORE INFO ON XR SIDEMOUNT SEE "COURSE ENHANCEMENTS" BELOW

 

Required Equipment:

The core equipment required for this course can be provided by East Coast Divers free of charge. We do recommend divers obtain their own diving equipment (Especially a Sidemount Harness and Wing!!), but it is not required at this level. Equipment that can be provided by East Coast Divers Includes:

  • Sidemount Cylinders
  • Sidemount Regulator Sets
  • Sidemount Harness & Wing
  • 3rd Bottle and Reg Set (For XR only)

 

Required Equipment that is NOT included:

  • Appropriate Exposure protection (Must not be new to you. You must have at least 12 - 24 dives of experience on the exposure system AT MINIMUM!)
  • Mask (plus backup mask for XR)
  • Power Fins (No split fins. Hinged fins are also frowned upon)
  • DSMB
  • Spool (min 60ft line)
  • Wetnotes
  • Cutting Device (Line cutter preferred, but shears are acceptable. Knives are frowned upon)
  • Dive Computers are highly recommended but not required (No gauge-mounted computers. Shearwater Computers are HIGHLY Recommended)

Basic Sidemount

This course is a pre-requisite for any Sidemount diver who wishes to move into XR Sidemount.

2025 Sessions:

Session 1

Class / Build Session (Needham Location)

May 3, Saturday, 9a - 1p 

ALTERNATE DATE OPTION - May 22, Thursday, 9a - 1p

  • Introduction and Orientation,
  • Course Requirements
  • Review PEGs and Online Training / Exam
  • Harness, Cylinder, Regulator Rigging Session

Session 2

Dive Day 1 (Pond)

May 23, Friday, 9a - 2p
Trim Weight Buoyancy Shallows
Dive 1: Propulsion
  • Kicks

 

Dive 2: SM Ops

Reg Switches (Cyl Balancing)

Valve Flow Check

Cylinder Trimming (Ally Students move Cylinders between 2 attachment points)

Session 3

Dive Day 2 (Pond)

June 1, Sunday, 9a - 2p

Dive 1: Basic Skill Circuit

  • Reg Clear
  • Reg Switch (Both Ways)
  • Long Hose Deploy
  • Mask Clear
  • Mask R&R

 

Dive 2: Team Stability

  • SAC Swim
  • Single Mount

Session 4

Dive Day 3 (Ft Wetherill RI)

June 12, Thursday, 9a - 2p

Dive 1: Internal Emergency Skills

  • Primary Reg Failure
  • Redundant Reg Failure
  • DSMB Ascent
  • Scenario Failure + DSMB Ascent

 

Dive 2: External Emergency Skills

  • Out Of Gas (OOG) Drill + Ascent
  • Rescue

Session 5

Dive Day 4 (Pond)

June 18, Wednesday, 9a - 2p

Dive 1: Scenario

  • Team Descent
  • Trim Cylinders
  • Sac Swim
  • Single Mount for 10+ Feet (Dive Flexible. must be completed once with mastery)
  • Reg Failure (Team Choice)
  • Move to Ascent Location
  • DSMB Ascent with 2+ Stops
  • Surface with Cylinders within 200PSI (Reg Failure within 400 PSI)

Dive 2: Scenario

  • Team Descent
  • Trim Cylinders
  • Basic Skill Circuit
  • Sac Swim
  • Single Mount for 10+ Feet (Dive Flexible. must be completed once with mastery)
  • OOG (Team Choice)
  • Move to Ascent Location
  • DSMB Ascent with 2+ Stops
  • Surface with Cylinders within 200PSI (Donor within 400 PSI)

2025 Bonaire:

We will be offering a Sidemount course on our Bonaire trip in October of 2025 at 10%. Email alex@ecdivers.com for details

Extended Range Sidemount Add-on

The XR Sidemount course add-on expands upon the Sidemount Diving course to include skills and techniques unique to advanced Sidemount diving. These skills are focused on the needs of decompression and overhead sidemount divers. The most obvious being the rigging, mounting, and use of a 3rd cylinder. Other skills introduced in the XR Sidemount Add-on include:

  • Remove and replace backup equipment
  • Primary mask failure (mask removal and replacement)
  • Failed primary buoyancy (redundant buoyancy deployment)
  • Free-flowing primary inflator (mitigation and oral inflation ascent)
  • Advanced free-flowing second-stage management (valve fluttering)
  • 3rd cylinder removal and replacement
  • Sidemount cylinder removal and replacement (no-mount)

 

Also, this add-on includes the following additional sessions:

  • One academic session
  • One (1) confined water skill development session
  • Two (2) in-water training days (this is the average time it takes to complete this program. Any additional training needed will be at a pro-rated fee)

XR Sidemount is currently scheduled on an "On-Demand" Basis. To inquire about training and dates, please contact our training team at alex@ecdivers.com. If you have any other questions about the courses, please contact us.

Class Forms

Below you will find links to REQUIRED class forms. These forms must be reviewed in their entirety before participating in any ECDivers in-water program. Arrival to class with incomplete documents may result in a forfeiture of that class date. If you have any questions or need assistance in completing the class forms please email our training department at training@ecdivers.com.