01 / 09 · TDI & PSAI Catalogue
TDI · Foundation
Intro to Tech.
Where recreational thinking ends and technical thinking begins — on twin tanks, long-hose, DIR.
What this
course is.
This is the bridge — not a try-dive, not a sales pitch. A controlled introduction to the kit, the planning and the in-water discipline that separate technical from recreational diving. You leave knowing what tech actually asks of you, with the gear configured and the fundamentals drilled.
Who this
course is for.
- Recreational divers ready to commit to twinset and long-hose.
- Sidemount divers wanting a structured DIR introduction.
- Anyone aiming at Decompression Procedures who wants the right base first.
Ref
Skill
What it means
01
Trim & buoyancy
Static and dynamic trim on doubles. Neutral, level, motionless.
02
Long-hose deployment
Primary donate, secondary stow. Slow, right, the same every time.
03
Streamlined config
Hose routing, clips, stages. Nothing dangling. Nothing snagging.
04
S-drills & valve drills
Gas-share, valve isolation, shutdowns. Muscle memory under load.
05
Conservative gas planning
Rock-bottom, turn pressure, thirds. Numbers before the dive.
06
Briefing discipline
Plan. Brief. Debrief honestly. Repeat.
3D
DurationIn-water + theory4-6
Training divesIncluding assessment30M
Max depthWithin cert limits1:2
Student ratioPer instructor€400
Course priceExcl. cert & gasBefore
you book.
- Advanced Open Water
- 50 logged dives
- Minimum age 18
- Current dive medical
In the
course price.
- Six in-water sessions
- Twinset & regs if required
- Dive truck and air fills
- Course manual
- Personal sign-off
Plan
for these.
- Certification fee
- Personal exposure suit
- Travel and accommodation
- Insurance
Next
Advanced Nitrox
EAN 21 through 100. The gases that make tech, tech.
VIEW →
And then
Decompression Procedures
The gate course. Planned staged deco to 45 m.
VIEW →
Combined
Adv Nitrox + Deco
Bundled in one programme at a better price.
VIEW →
Start the
conversation.
A short message with your goals and certification history. No forms, no funnels — you talk to the instructor.