2boys, 2girls, :|, aqua_shorts, arm_hug, bangs, beach, black_eyes, black_hair, blunt_bangs, blush, bob_cut, breasts, brown_eyelashes, brown_eyes, clenched_hands, closed_mouth, collarbone, crossdressing, footprints, full_body, furrowed_brow, green_shorts, hairband, hime_cut, holding_another's_arm, long_hair, male_swimwear, male_swimwear_challenge, multiple_boys, multiple_girls, nervous, ocean, open_mouth, parted_hair, polka_dot, polka_dot_hairband, raised_eyebrows, sandals, serious, short_hair, shorts, small_breasts, swim_briefs, swim_trunks, topless, walking