He has published hundreds of articles in numerous dive magazines and is a steady contributor to Undercurrent , one of the dive industries most noted and fiercely independent scuba journals .
Halstead is one of the dive industries most prolific journalists .
Halstead has published hundreds of articles in numerous dive magazines and is a steady contributor to Undercurrent , one of the dive industries most noted and fiercely independent scuba journals .
Halstead is one of the dive industries most prolific journalists .