While working as an English teacher and freelance journalist in South Korea for twelve years, James Card explored remote mountain valleys with a fly rod. In one of the most densely populated countries in the world, he discovered pristine streams holding rare native trout. Only a few hours from Seoul, Card spent years fly-fishing these streams completely alone. Eventually he shared these experiences with people from around the world, as the only fly-fishing guide in the country. Whether fishing alone or guiding clients, he often felt like he was on patrol, scouting new streams in remote valleys, many of which are near the Korean Demilitarized Zone.

In The Dawn Patrol Diaries Card writes about fly-fishing as well as South Korean landscape and culture. His travels range from the borders of the DMZ to inland mountain trout streams, from the rugged southern coast to the tidal flats of the western coast. He goes fly-fishing where battles of the Korean War were fought and offers vivid descriptions of the last wildlands in South Korea as well as insightful observations on the perils facing Korean cities, villages, and farms.