Diving in Overhead Environments is the text-book literary assistant to the TDI DIVING IN OVERHEAD ENVIRONMENTS ELEARNING COURSE. This course is divided into three separate levels; cavern, intro to cave and full cave. It is designed to develop the skills and knowledge for each level that you wish to participate in.

The objective of this course is to train divers in the proper planning, procedures, techniques and hazards of diving in caverns and the overhead environments. You will learn how to utilize a primary guideline in the intro to cave course and in the full cave course you will learn how to use secondary lines. As you progress through each level your knowledge and skills will build upon previous skills. Emphasis is placed upon dive planning and skill perfection through each level ending with the full cave course that includes actual cave penetration. Book is 162 pages.