Scuba Channel

PADI TEC Deep Diver Open Water Skills

技術潛水員課程訓練: 開關氣瓶閥門及分隔閥門 Cylinder valves and isolator shut down drills

http://greenbluesea.net/2015/04/15/tec-diving-two-great-wreck-dives-in-cebu/
Both of the wreck I was visit on few years ago, especially the wreck in Mactan, this is the dive site I often do the Tec dive training

Tec diving — Two great wreck dives in Cebu Making use of my new tec diving skills and exploring the Mogami Maru and San Juan Ferry wrecks.