ADAS Part 4 Closed Bell Course
Mixed Gas (Saturation) Diving Offshore To 300 Metres
The ADAS Part 4 Closed Bell Course is seen by many as the ultimate aim of most commercial divers; it certainly provides an enviable lifestyle as well as excellent earning potential and great job satisfaction.
Training to be an ADAS Part 4 Closed Bell diver will take your career to a whole new level and, here in
Sheltered training environment
The course takes place on
First-hand, shared experience
Kenny Kinnaird, who leads the instructional team on this course, as well as the Closed Bell course at our Fort William Centre, brings many years of experience as an air and mixed gas diver. His extensive commercial diving career has included working around the world completing underwater construction and inspection work, hyperbaric welding and pipeline construction, to mention just a few jobs. As well as providing the instructional and practical elements of the course, Kenny also takes time to share his own, personal experience of working in saturation and in the commercial diving industry in general; experiences which aren’t written in any manual!
By sharing our instructors between our
Experienced commercial divers
The ADAS Part 4 Closed Bell Course is for experienced air divers, who have at least 12 months experience diving at work with an ADAS Part 3 certification or recognised equivalent. Please see the attached student prerequisites you must have before being able to attend this course.
Course price and dates
The price of the Closed Bell Course is $25,000 – only valid on courses booked before 31st March 2012 – and includes all course notes and manuals, ADAS certification and administrative costs. As part of the course and included in the price is the IMCA ALST certification, which you will receive on successful completion of the exam at the end of the Closed Bell Course.
Students who have attended one of our 12 week commercial air courses will receive a 5% discount off the cost of this course, and any other course they wish to undertake with The Underwater Centre, Tasmania, in the future. The price does not include accommodation or meals for the duration of the course.
Check the next available ADAS Part 4 Course dates by downloading our 2012 course calendar here; start planning your work schedule around training for the next step in your subsea career, now.
For any queries on the above prerequisites, or the course itself, contact our student advisors.



