In the north the mountains, where the soil is hard rock, run flush against the water, so there is almost no hinterland to speak of. As you turn toward Chichi, the bay dips inland. This is because the land around Chichi was originally very soft soil of the Pali Bay terrace, so it was easily washed away.
北邊的都巒山層硬岩逼海，幾乎不見腹地，到了磯崎卻出現向內凹陷的海灣，是因為原來磯崎的地質屬八里灣層軟岩，容易受海水侵蝕所致。