08 / 09 · TDI & PSAI Catalogue
PSAI · Past the light zone
Intro to Cave.
Past the daylight zone, on a permanent line, in a strict team. The real overhead environment with hard limits.
What this
course is.
This is the course that separates cavern divers from cave divers. You leave the natural light zone behind, follow a permanent guideline, dive on the mainline with strict no-jump rules, and learn what it actually means to be deep inside an overhead with no direct surface. Heavy on planning, gas discipline and team protocol. There is no shortcut here.
Who this
course is for.
- Certified PSAI Cavern divers stepping into the full overhead with controlled limitations.
- Divers planning Full Cave who want to spread the training across two trips.
- Cave-trained divers from other agencies wanting a Cueva del Agua orientation.
Ref
Skill
What it means
01
Linear penetration
Mainline only. No jumps. No circuits. Discipline before depth.
02
Lost-line drills
What you do when the line is gone. Slowly. Methodically.
03
Lost-buddy drills
Search, call, ascend protocol. Decided before, executed in.
04
Strict gas thirds
Out, back, reserve. The reserve is not for fun.
05
Markers & arrows
Personal markers, directional and non-directional. Read them right.
06
Cave navigation
Reading the cave. Mental map vs. the line. Following the team.
07
Failure protocols
Gas loss, light failure, freeflow, cut line. Drilled until boring.
08
Trim & finning in silt
Helicopter, modified frog, reverse. Never kick down.
3D
DurationIn-water + theory6
Training divesIncluding assessmentCaveM
Max depthWithin cert limits1:2
Student ratioPer instructorPOA
Course priceExcl. cert & gasBefore
you book.
- PSAI Cavern Diver or equivalent
- Twinset or PSAI Sidemount qualification
- 75 logged dives
- Compulsory assessment dive before the course
- Minimum age 18
In the
course price.
- Cave access at Cueva del Agua
- Six in-water training sessions
- Course manual
- Reels and primary lines
- Personal sign-off
Plan
for these.
- Certification fee
- Gas at cost
- Personal cave kit
- Insurance
Next
Full Cave Diver
Autonomous cave team. Complex navigation, jumps, traverses, circuits.
VIEW →
Tech base
Adv Nitrox + Deco
If you do not yet have the tech base under your cave training.
VIEW →
Sister
Cavern Diver
If somebody you dive with is not yet certified, send them here first.
VIEW →
Start the
conversation.
A short message with your goals and certification history. No forms, no funnels — you talk to the instructor.