winnipeg events next 14 days

http://b3.zcubes.com/v.aspx?mid=963011&title=chide-that--terrible--golf-links-sand-trap-bunker-on-scottish-sheep

Sand Traps on fairway-- much better called "Bunkers" cause great trouble for a lot of golf enthusiasts. How is that these demons came about to be the scourge of most common golf players?