2girls, beach, beach_towel, beach_umbrella, bikini, bird, blue_hair, blue_sky, blush, brown_hair, casual_one-piece_swimsuit, cooler, day, heart, hidamari_sketch, hiro_(hidamari_sketch), hug, lying, miyako_(hidamari_sketch), multiple_girls, nyztsune, ocean, on_side, one-piece_swimsuit, outdoors, parrot, red_one-piece_swimsuit, rock, sae_(hidamari_sketch), sand, shore, sky, swimsuit, towel, umbrella, ume-sensei, water, yuno_(hidamari_sketch)