Open Water is a 2003 psychological horror film loosely based on the true story of an American couple, Tom and Eileen Lonergan, who, in 1998, went out with a scuba diving group, Outer Edge Dive Company ...

At the break of dawn, a group of swimmers step into a quiet lake, scanning the open horizon. There are no lane lines, no black lines on the bottom of the pool. Simply the water, wind, and the unknown.

Luckily, I felt safe with buoys to hang on to and my friend guiding me, and somehow, after just that one open-air practice session where I’d swim a few hundred metres then stop at the lake side, I ...