Technical diving with Philippine's Coast Guards, SCUBA diving school
Diver Trim Check Exercise - Backmount Essentials Online Course
Basic Scuba diving finning techniques from GUE Instructor John Kendall
Technical diving is scuba diving that exceeds the agency-specified limits of recreational diving for non-professional purposes. Technical diving may expose the diver to hazards beyond those normally associated with recreational diving, and to greater risk of serious injury or death. The risk may be reduced by appropriate skills, knowledge and experience, and by using suitable equipment and procedures. The skills may be developed through appropriate specialised training and experience. The equipment often involves breathing gases other than air or standard nitrox mixtures, and multiple gas sources.