GUE Tech 1 – Get Started with Tech Diving

The purpose of the GUE Tech 1 course is to introduce a diver to the skills required for “technical” diving. You will finish the class with a skill set that will allow you dive using trimix to a maximum depth of 50m, and do a maximum of 30 minutes of decompression.  This is a great step on from recreational diving, but the exposure is not so great as to cause significant risk to the diver.

The GUE Tech 1 course is designed to take you through a  progression, gradually increasing the skill levels, beginning with simple manifold failures, and developing on to safe decompression gas handling, more complex failures, ascent protocols and decompression management. The course culminates in three experience dives in the 40-50m range to begin you on the path to safe and competent technical diving.

We run the GUE Tech 1 course over at least 6 days, depending on the location and logistics. This is an intense class, a mixture of at least 9 hours of in-water time, the associated debriefs, 10 hours of academic work and a few hours of dry run work.

You will find the GUE Tech 1 a tough class, but it is a highly rewarding experience, and will increase your comfort and ability in the water more than you can possibly imagine.

I have a small email list that I use to let you know about course openings, but more importantly, delivers a load of free information about general technical diving, locations and of course how to best prepare for this amazing course. Just sign up below!

I’m Interested in the GUE Tech 1 course

* indicates required

Wreck and Cave will use the information you provide on this form to be in touch with you and to provide updates and marketing. Please let us know all the ways you would like to hear from us:

You can change your mind at any time by clicking the unsubscribe link in the footer of any email you receive from us, or by contacting us at We will treat your information with respect. For more information about our privacy practices please visit our website. By clicking below, you agree that we may process your information in accordance with these terms.

We use Mailchimp as our marketing platform. By clicking below to subscribe, you acknowledge that your information will be transferred to Mailchimp for processing. Learn more about Mailchimp’s privacy practices here.

Lina Holds
A Tech 1 diver on the wreck of the SS Lina in Croatia, a favourite site on Wreck and Cave GUE Tech courses