The ultra-clear water in Korea's trout streams makes hooking up on a dry fly a difficult task.

But for now, the fishing remains pretty stable, and there is nothing worse than putting a client on rising, hungry trout all day long and he misses strike, after strike, after strike. It drives a guy to insanity, rage and frustration when he should be relaxed and having fun.

The biggest problem is when fishing ultra-clear water. The angler can see the fish rise from the depths, this brilliant silvery flash approaches the surface, and he yanks the hook before the trout is able to kiss it. The trick is to control your instincts to wait a millisecond before setting the hook. This requires the patience and reflexes of a Zen monk warrior. For smaller trout on fast water, it's often a spunky splash and nothing more. Not much you can do, especially if you're daydreaming. For larger trout, wait for the "turn," the second the fish takes the fly and drops its head.

Here, Kale Coghlan closes the deal and sets the hook on a cherry trout.