Children's playground seesaw Safety

Naughty Castle amusement project seesaw is a need to meet in order to play up the rides, but this equipment if not accompanied by an adult, not suitable for children under 5 years of age to play.
Parents accompany baby seesaw, we must keep in mind the following points:
Two children sitting face to face on a seesaw, not upside down, sitting back to back, let the children hold the handle firmly with both hands, do not try to touch the ground or the hands vent; legs pedaling to put special place if other children are playing seesaw, while waiting at the side to keep the distance.
Seesaw one can only take a child. If both the child's weight difference is too large, and children can discuss, for a weight of almost kids play together, and not in the light of a re-sit a child.