Ulun Danu Beratan 布拉坦水神庙

布拉坦水神庙是为了女神达努（Danu）而建。“达努”在巴厘语中的意思是“湖”，而女神达努则是水、湖泊和河流的女王。寺庙建筑群由四座神圣的建筑组成。林伽寺（Linga Pura）高三层，是供奉湿婆神的地方；Pura Puncak Mangu 高 11 层，是为了献给毗湿奴神而建造的；普卡曼古寺（Pura Teratai Bang）是主寺，特拉泰邦寺（Pura Dalem Purwa）是为供奉巴厘印度教神（Sang Hyang Widhi）而建造的。最后一座寺庙也是祈求生育、繁荣和幸福的人们的场所。

建筑风格遵循“三神一体”的信仰，三种圣色代表三位神：湿婆、梵天和毗湿奴。第一种颜色是红色，献给造物主梵天；第二种是黑色，是毗湿奴的象征，宇宙平衡的保护者；最后，是代表湿婆神的白色，象征着毁灭者。

自石器时代以来，寺庙周围的地区就被视作礼拜场所和宗教仪式的中心。寺庙的左侧有一个石棺和一块石板，历史可追溯到公元前500年左右。寺庙本身则早在1556年就有记载。1633年，它由孟威国王（King of Mengwi）艾·古斯蒂·阿贡·普图 （I Gusti Agung Putu）重建，融合了印度教和佛教的建筑风格。尽管年代久远，由于当地政府和社区维护的良好，寺庙仍然很干净，状况良好。布拉坦水神庙是巴厘岛的标志性建筑之一，印在50,000元面额的印尼盾钞票上。

布拉坦湖是巴厘岛的第二大湖，是整个贝都古村稻田和种植园的灌溉水源。由于气候凉爽，土壤肥沃，它所坐落的山通常也被称为“圣山”。在早期，贝拉坦湖是巴厘岛最大的湖，直到发生了一场毁灭性的地震，把这个湖分为三个部分：贝拉坦（Beratan）湖、布扬（Buyan）湖和坦布林甘（Tamblingan）湖。布拉坦（Beratan）这个名字来自于Brata这个词，意思是引导自己去满足生活中的9种基本需求，这个词用在“Tapa Brata”这个词里，意思是冥想并与自然相结合。

Set within the highlands of the mountainous Bedugul Regency in Bali, atop a plateau that sits on Lake Beratan, stands the majestic Ulun Danu Temple. In the mild, mountain weather, approximately 1,500 meters above sea level, the air is crisp and cool. The stunningly clear lake is calm and almost perfectly still, save for the soft breeze that occasionally sweeps across, creating tiny ripples upon its surface. A thin mist rises from the lake and hangs in the air, surrounding the temple, giving it a somewhat surreal appearance.

Pura Ulun Danu was built in adoration of the Goddess Danu. Danu, in the Balinese tongue, means lake, while the goddess Danu is queen of water, lakes and rivers. The temple complex consists of four sacred buildings. Linga Pura stands three levels high, and is a place of worship to the god Shiva. Pura Puncak Mangu stands 11 levels high, and was built in dedication to the god Vishnu. PuraTeratai Bang is the main temple, and Pura Dalem Purwa is built in worship to Sang Hyang Widhi. This last temple is also a site for those who pray for fertility, prosperity and well-being.

The area surrounding the temple is believed to have been a site of worship and center for religious rituals since the megalithic period. To the left of the temple lies a sarcophagus as well as a stone slate that are dated to around 500 BC. The existence of the temple itself is has been recorded as early as 1556. In 1633, it was rebuilt by the King of Mengwi, I Gusti Agung Putu,  with a mixture of Hindu and Buddhist architectural styles. Despite its age, the temple remains clean and in good condition, well kept by the local community. Ulun Danu Temple is one of the icons of the island of Bali, and is pictured on the 50,000 rupiah bill.