噴泉洞也是這裏的一個很適宜参觀的景點，天然形成的洞窟內容，經過海水的壓力形成了噴發的特點，噴泉洞也是這裏的很值得欣賞的一處景色，不定時的一個噴發的瞬間。

噴泉洞是一處天然形成的景觀，不是每次都能看到，需要海水大的拍打過來后，在一些地質孔洞中變化的，噴泉的形成也是火山熔岩的原因，這裏的距離還是蠻遠的，挺有趣的。

Lanai lookout & Halona blowhole都是大自然的產物，太美妙了。一定要保護環境，不能破壞大自然

Fountain Cave - located at the foot of Diamond Head Mountain, is a coastal cave formed by volcanic lava. The coast around it is black volcanic lava, so it is also called "Blackstone Fountain". This magical natural fountain often emits water pillars several meters high. The bigger the wave, the greater the pressure, the higher the water pillars emitted, and accompanied by rumbling sound, the scene is very spectacular.

There is a viewing platform at the fountain mouth, which allows free parking. The fountain mouth is a pile of volcanic lava, which has left a big crack on the reef of the rock wall due to the erosion of sea water for a long time. When the wave hits the rock wall, under the pressure of great pressure, the sea water will rush up from the crevice to form a huge water column, and there is a huge sound, as if it is a fountain of water. Local bear children like to play and interact with the sea.

This coastal cave formed by volcanic lava, also known as the "Blackstone Fountain", because of long-term sea erosion, as long as there is a sea water influx, it will spray 16 meters high water column spray into the air, accompanied by rumbling sound, very shocking. No tickets are required. Tourists should not be too close to the spout to avoid being washed down by the rapids.

靠近哈瑙馬灣的路邊一個天然的氣孔,每隔幾秒鐘看到它吹出海水真的很爽。

哈洛娜噴泉洞，Halona Blowhole。在夏威夷語中，Hālona，關注、觀察。哈洛娜噴泉，位於歐胡島東南角，在哈瑙馬灣外延海岸線的東北方，在Lanai Lookout和Sandy Beach之間，背靠Sandy Beach Park，東南面向遼闊的太平洋。在有風的日子里，當潮汐升高，風推浪花，穿過岩層中天然洞穴，向高空中噴射而出，彷彿噴泉一般。當海風和浪潮默契完美時，噴射出的浪霧可達三十英尺之高，堪稱高潮迭噴。Hālona Blowhole，哈洛娜噴泉洞；亦可稱為Halona Blowhole Lookout，哈洛娜噴泉洞觀景點。具體地點：8483 HI-72, Honolulu, HI 96825。