Examples of fun, indoor activities for kids include hide and seek, treasure hunts and indoor bowling, according to Today's Parent. Parents can modify these activities to better fit the age of the children, such as playing hide in seek in the dark when they are older.
Treasure hunt involves placing clues regarding the location of the "treasure" around the house, while indoor bowling can use water bottles in place of bowling pins. Other activities include indoor basketball, card games and board games. Pencil-and-paper games such as Battleship are also fun indoor activities. Pencil-and-paper Battleship involves two players using graph paper in the vein of the classic board game.