This is a canyon by the sea.
There are many caves on the mountain wall of the canyon.
Sea water enters the canyon from the cave
Is a legend among the water animal - Water hole ~
Many sea animal use this as a habitat
To escape the strong sea beast
這是海邊的一處峽谷
峽谷的山壁處有許多山洞
海水從山洞進入峽谷之內
是水族之中的傳說
水連洞天
許多海族以此處為棲息之地
來躲避強大的海獸之補食
thank you @cloudblade