How to breathe underwater. Learn how to use your regulator in this free scuba diving lesson video from our experienced diver and certified PADA dive master. Expert: Cole Abbott Bio: Cole Abbott is currently working as a divemaster in Kauai, Hawaii. He holds many certifications through PADI, including Wreck Diver, Night Diver, Fish Identification and Search and Rescue. Filmmaker: Amy Miyajima

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