Create a single black-and-white coloring sheet for children aged 4 to 9 featuring a happy and lively ant engaging in summer vacation leisure activities. The drawing should be attractive and suitable for children in the specified age range. Ensure that the sheet is entirely in black and white, leaving room for children to bring the scene to life with their own colorful imagination. Incorporate summer-themed activities such as picnics, beach outings, hiking, playing sports, or any other joyful pastime. Focus on making the coloring experience enjoyable and imaginative for young kids, with age-appropriate details and an overall sense of cheerfulness.