Because the north and northeast coasts face directly into the seasonal northeasterly winds, the area is soaked in rain for the better part of the year, allowing vegetation to flourish. And of course 400 years ago this area was still completely undeveloped, so the primeval forest was intact.
由於台灣北部、東北部正處東北季風的迎風面，每年有大半時間籠罩在豐潤雨水中，草木生長蒼翠青蔥，何況四百多年前，這裡盡是人煙渺茫、未經開發的原始林。