1) Children sharing a room with his parents and not occupying an extra bed is free; children with extra bed need to pay for the extra bed; children occupying a bed, the price is the same as the adult.
2) For a child under 2 years, a baby cot will be provided by the hotel free of charge and the breakfasts are usually free.
3) Breakfast for children usually charges half of one adult fee.

The rules may vary in different hotels. If any surcharges occur, you must be paid directly to the hotel.