10m Water Pressure on Plastic Air Bottle - Poor Knights - Free Diving - HD

Quick video of what water pressure does to a sealed plastic bottle full of air under 10 m of water - so about double the normal air pressure. Bottle is then released and floats to the surface and expands back to normal. SIte was at the Poor Knights in New Zealand , trip with Dive Tutukata - January 2014 - Taken using a Go-Pro Hero 3 on GoPole - Full HD