The drinking water is great for swimming at Gwangalli Seaside as it is actually in a comparatively sheltered bay with not many waves (so not ideal for surfing). Several Busan boat trips and yacht excursions also means that you can see Gwangalli Beach from the ocean. The tunnel is 70 https://tour-gangnam-karaoke89111.iyublog.com/31909998/detailed-notes-on-travel-busan-hot-spot