They start with Ben Nevis at about five o'clock. It takes about three hours to climb this mountain, so they reach the summit (the top) at about eight o'clock, and return to the bottom at about ten o'clock. In the summer it is still light in Britain at this time. If people start climbing Ben Nevis too early they will arrive at Scafell Pike too early the next morning and it will still be dark. It is important to be quick at the bottom of the mountains. There is not much time so food is usually prepared by others waiting at the bottom. When the climbers arrive they usually leave immediately and eat while they are on the road.