You can see from this picture of the 1903 World Series that there are no outfield fences, although there was likely a chalk line or a rope marking how close spectators could come to the field.
They range from grandfathers with traditional flowing sarongs hanging over their bare feet to teenagers clad in polo shirts and trainers, all climbing the 5, 000-odd stone steps that are illuminated by electric lights throughout the night, a glowing white line spiralling up the mountain and marking the way to the top.