Levente Rozsahegyi

PADI Master Instructor

Working and learning from Mark was a serious eye opener exercise for me. Not just to learn how to teach disabled people, but to understand their problems and difficulties in life as well. However the greatest thing is to see them enjoying diving that is norm to us much more than anyone i have seen before. The course itself not only equipped me with the knowledge of teaching disabled people diving but to look at life differently. Mark himself is an awesome guy who looks at any opportunity for a laugh and positive outcomes. Hoping to visit you in Kenya soon!!!

Graham Jefferson

PADI O.W.S.I  #492919

Mark was my PADI staff who I trained with when I did my PADI IDC in 2007, his dive & course knowledge is first class, his training techniques are excellent and is humour is top notch.  IDCs are tough and you need a Course Director who can inject a bit of fun in to the course at the right time. If you decide to GoPro with Mark, you will be in safe hands, learn loads and have bags of confidence going in to your PADI Instructor Exam.

Morgan MacKinnon


Having undertaken training in scuba up to the highest level of certification, I am well versed in the excellent standards and services of many major scuba course providers. Mark Slingo exceeds them all. His personality, wealth of experience and extensive expertise make him the ideal teacher and mentor for anyone who has a real passion for diving. I would recommend him unreservedly to all! One could wish for no better guide above or below the water!

Sean Flynn (DDI Pro Training 2015)


I’d just like to say what an amazing course director and instructor trainer you are. You are an inspiration to us all in everything you have accomplished. Keep up the great work. It’s was a great pleasure meeting you and having you as my instructor trainer for my DDI (disabled divers international) instructor course. I hope we meet up again soon.  Many many thanks. Sean Flynn

David Patterson

PADI Master Instructor & Aggressor Captain

I first met Mark back in 2006 when i decided to travel to Thailand to complete my professional divers training. I found Mark to be a fun, knoweldgeable and professional instructor. His patience and understanding were second to none. Mark assisted me on my Divemaster rating and he also staffed my IDC,I could not have wished for a better instructor. With Marks assistance and guidance i passed the PADI IE with flying colours. Since i left Thailand and headed into the big wide world i have used the skills and knowledge that Mark instilled in me on a regular basis. I have been fortunate enough to be employed full time in the diving Industry since my time spent with Mark. He truly is a wonderful instructor but more importantly he is a wonderful person. Complete your dive training with Mark and he will give you the skills and experience you need to be a safe diver and he will also assist you through his numerous contacts in the industry to make the wonderful world of scuba your career.

Szilveszter Toth

PADI IDC Staff Instructor, DDI Instructor Trainer

Mark is an excellent PADI Course Director and DDI Instructor trainer I had the privilege to dive with. Mark trained me to DDI instructor in Dubai in 2013, he was informative, knowledgeable and offered plenty of extra tips on how to provide the best experience to my future disabled divers. Mark always kept in touch and was happy to support with further information and advices during the years. I highly recommend diving and learning to dive with Mark as you'd learn from one of the best.

Darren King

PADI Instructor #486629

Having been a working Dive Professional for several years I decided to do my IDC back in 2009. Mark was my Course Director for this. I found him professional and very thorough and the IE seemed easy after the IDC. I would certainly recommend him to anyone considering going down the professional route.-
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