..., 2boys, 2girls, 4koma, backbeako, backbeard, beach, beach_towel, blindfold, blush, comic, emphasis_lines, flying_sweatdrops, food, fruit, gegege_no_kitarou, greyscale, hair_over_one_eye, long_hair, male_swimwear, monochrome, multiple_boys, multiple_girls, one-eyed, open_mouth, original, pointy_ears, sand, school_swimsuit, slit_pupils, smile, spoken_ellipsis, stick, suikawari, swim_trunks, swimsuit, torotei, towel, twintails, water, watermelon