When the tide ebbs, there will be a shallow water path extending from Caoyu to the Guardian Stone; the 4.6km shallow water path can take you to Shagang Village on the other side. The Yuanbeiyu shallow water path is composed of stone plates, stone fragments and coral reefs, it is a sea path which Yuanbeiyu ancestors used to rely on for outside contact, bearing significant historical meaning, adding to the fact that there is a rich shallow sea ecology here, the Yuanbeiyu shallow water path has become a popular wave-chasing route in recent years. The two hour trip will take you on a tour of the rich underwater ecology and coral reefs in Yuanbeiyu, you won’t even have time to blink!