This is the pinnacle of closed circuit rebreather diving. Here you will use all the knowledge, skills, equipment and experience from all of your previous training and push your limits to the extreme. The program qualifies you to execute dives to 100 meters / 330 feet using the same CCR Extended Range Total Diving System you mastered in previous programs. However, you will now use a minimum of two, maximum of three, stages for bailout gases. You will earn the SSI CCR Hypoxic Trimix certification after completing this program.