Hoylake used to have lots more OB. Colt's famous Royal hole, the seventeenth for normal play, the opener in the Open routing, had the green hard against the course boundary -- you could potentially putt OB. And the seventh (ninth on the Open routing), Dowie, was for many years regarded as among the world's most legendary one shot holes -- Darwin called it one of the best in the world. It had OB hard against the left side of the green. Both greens were remodelled, Dowie in a quest for fairness, Royal because it was impossible to get spectators around the side of the green, so it had to go to before the Open came back in 2006.