The island is about 500 meters off the mainland, and they are connected by a sandbank (the name Lulien literally means "connected to the land"). When the water coming from the two sides meets over the sandbar, it explodes in a foamy white wave, giving the appearance of a white belt tied across the emerald sea.
島與陸地相距大約五百公尺左右，中間有沙洲相連，當兩邊海水在沙洲相遇時，激打出一條白色的浪花，像是一條白色絲帶鑲在碧海中。