In Gwangalli, go to Olive Young Gwangan Beach (101, 235 Gwanganhaebyeon-ro) or Gwangalli (153-1 Gwanganhaebyeon-ro), both 11am–11pm, so you can go after the Gwangan Bridge night view. The inside-out short trunks come in 6 colors (1,800 reviews). Perfect after a beach walk.