Tec Trimix is the big one, you’ll learn to use hypoxic trimixes and travel gases to get to depth, then once you’re qualified and if you want to, you can get to 100m!
The course takes 4 days to complete. It is possible to do it in this country but it’s far better to do this overseas somewhere like Malta. You’ll begin with a skills based dive again dealing with multiple stages, before we start a series of amazing wreck dives gradually increasing depth until your qualifying dive. The course covers a lot on the decompression issues faced by divers planning hypoxic trimix dives. Then as an added bonus we can do another dive at the end of the course to get you to 100m!