The Most Dangerous Golf Course in the World It's just one hole -- 192 yards -- but it packs a punch. There are 37,000 U.S. service personnel in Korea, approximately 200 patrolling this area near the demilitarized zone, a 151-mile fence that separates North Korea and South Korea. Private Rich Rukavina takes a swing (above). The other side of the fence beyond the rice paddies is definitely out-of-bounds -- contestants in long-drive contests win a beer for hitting land mines spread there.