Jin Island is rich in fishery resources and is well suited to fishing. A local legend tells of a man called Chang Pai-wan who came to fish at Jin Island and took some rocks home with him to build a wall to keep out the wind. A passing geologist noticed the wall and was shocked – because these rocks were all platinum ore. Hearing this, Chang immediately traveled back to Jin Island with his family – but all the rocks had disappeared.
Tiejhanyu (Baisha – Island)
The whole square-shaped island is composed of basalt rocks. As the cliff in the north has suffered prolonged sea erosion, a sea-eroded cave measuring ten odd meters has formed. The water in the cave is quiet and refreshing. During migratory seasons, groups of common terns can also be seen. It is really a good place for bird-watching.
金嶼是無人居住的小島，雖然不產金礦，卻有「金嶼」的封號，據說說是有位張百萬在島上拾獲黑色石塊，經鑑定為金塊，一夕致富，而後又延伸出張百萬發跡後與呂石老比賽丟銀元至跨海大橋中段海溝，看誰比較富有來定輸贏。除了這一段有趣的傳說增添了與嶼的名聲外，此地也擁有壯觀的玄武岩地景，色括了傾斜與臥倒的橫狀玄武岩、岩脈及似火口地形，十分罕見，市上常有保育鳥種蒼燕鷗棲息繁殖。
位於白沙鄉赤崁村，與鐵砧、金嶼之間的三角海域，魚類產量極為豐富。金嶼的自然景觀除了直橫臥的玄武岩外就是獅仔頭，它位於南端的玄武岩上，有一顆很大的玄武岩巨岩。金嶼南岸柱狀玄武岩節理是直立或橫臥最為壯觀，其節理稅直立或彎曲相當美麗，比起其它島嶼碩大的玄武岩柱，金嶼的玄武岩便顯得秀氣多了，或許是不易登岸，也造成該島的玄武岩景觀保持得相當完整。