is somewhere that ocean predators can't reach. 是海洋捕食者无法染指的地方

164. After months feeding and growing out at sea,
     经过几个月的海中觅食与生长
165. these gobies are ready to breed.
     这些虾虎鱼已经做好了繁殖的准备
166. And the safest place to lay their eggs
     最安全的产卵处
167. is somewhere that ocean predators can't reach.
     是海洋捕食者无法染指的地方
168. The top of this waterfall.
     这座瀑布顶端
169. Surely an impossible journey for a fish.
     对鱼来说 无疑是一处不可能的目的地
170. But over the coming days, the gobies transform themselves.
     但在接下来的几天里 虾虎鱼会改变自己

来自《行星地球 第三季 第四集 Planet Earth S03E04 淡水》第 167 行