copyright 2014, Tamara Thomsen. All rights reserved.

TDI Cavern Diver

This course is designed to develop the minimum skills and knowledge for cavern and overhead environment diving within the limits of light penetration; in addition outlines specific hazards associated with cave diving. The cavern diver course in not intended to provide instruction for cave diving environments. The objective of this course is to train divers in the proper planning, procedures, techniques and hazards of cavern diving.


  • Policy for Cavern Diving
  • Gas Matching Procedures and Management to Include Dissimilar Volume
  • Psychological Considerations
  • Equipment Considerations
  • Communication
  • Swimming Techniques
  • Physiology
  • Cavern environment
  • Cavern Conservation
  • Problem Solving
  • Accident Analysis
  • Review of Dive Tables and Decompression Theory
  • Cavern Diving Etiquette

Course Options

This course is typically taught in combination with TDI Introductory Cave Diver

Prerequisites and Requirements

Students must have the following for class:

  • Student must be 15 years of age
  • Student must have a minimum of 10 logged dives
  • TDI student folder on file
  • Diversions' Student Agreement on file
  • All knowledge reviews completed
  • A copy of TDI's Diving in Overhead Environments manual
  • Please review the technical diving gear list for gear requirements for this course

Course Fees

Please contact us for the most current pricing. Course fees do not include books, gases, or certification card.

Course Availability

Courses are offered on a regular basis and upon request. Please review our calendar and then contact us.

Copyright , Diversions Scuba, LLC. All rights reserved.