Possible Clues:

• To sail over river in heavy mist is child's play if you can get over it
• Spring game?
• Game played by kids in meadow for recreation, without parental guidance
• Children's game of jumping over each other
• Children’s game
• Game of golf - par eight, initially
• A golfer upset about pro's first game
• Move forwards with support of backs in game
• Advance making progress on the backs of others
• Rope and flag put out for children's fun