1boy, abs, animal_ears, arknights, bara, bare_pectorals, bare_shoulders, beach, blue_male_swimwear, blue_sky, brown_hair, bulge, cow_boy, cow_ears, cow_horns, crrispy_shark, dark-skinned_male, dark_skin, day, feet_out_of_frame, horns, large_pectorals, male_focus, male_swimwear, matterhorn_(arknights), matterhorn_(beach_guard)_(arknights), muscular, muscular_male, navel, nipples, official_alternate_costume, one_eye_closed, open_clothes, outdoors, partially_submerged, pectorals, see-through_silhouette, short_hair, shorts, sky, solo, stomach, sunlight, surfboard, swim_briefs, swim_trunks, water, wet, wet_shorts