3girls, =_=, animal_ears, beach, black_one-piece_swimsuit, blush, breasts, casual_one-piece_swimsuit, caustics, cleavage, cloud, day, dress, eyewear_on_head, gold_ship_(run_revolt_launcher)_(umamusume), gold_ship_(umamusume), grin, holding, holding_water_gun, horizon, horse_ears, horse_girl, horse_tail, inflatable_armbands, innertube, large_breasts, long_hair, magictuna, mayano_top_gun_(umamusume), mejiro_mcqueen_(ripple_fairlady)_(umamusume), mejiro_mcqueen_(umamusume), multiple_girls, ocean, one-piece_swimsuit, open_mouth, orange_hair, outdoors, purple_eyes, purple_hair, sand, sideways_mouth, small_breasts, smile, sparkle, standing, sunglasses, swimsuit, tail, thigh_strap, umamusume, water_drop, water_gun, white_dress