Pernn waterfall height of 9m, and the width of 20m and it lies on the stream of Prenn. From its height, the water flows down over a cliff of basalt rock creating a white curtain of water like the hair of a fairy. Around 1960, at Prenn waterfall, there was a small zoo including elephant, tiger, bear, deer, monkey, python, peafowl, etc.

Tourists can climb to the temples through steps or they can hire a jeep to the lower temple then they can go on foot to the middle temple which worship the god of rice and then to the upper temple. Soil, water and the joss-stick burner were taken from the original Hung temple. 100 pieces of round rocks (taken from Ninh Thuan) symbolize for 100 eggs and they all put beside the statues of Lac Long Quan -Au Co.

At present, the tourist site has an area of 160 ha, of which the pine forest and primitive trees make up 90% of the area. The site has been restored and equipped with the cable-car, suspension bridge, stilt-houses, huts on trees, showroom of silk paintings, souvenir shops and the services like folklore music performance, rowing-boat, folklore games, etc and a restaurant serving food as the desires of tourists, especially the snake-head fish soup.

In the East of Prenn waterfall, we can see a complex of Au Lac Temples, which is located on a hillside, worshipping Hung Kings. This is a new model of tourism: for both eco-tourism and for remembering the ancestors. The temples were designed like the original temples in Phu Tho (including the lower (Ha) temple, the middle (Trung) temple and the upper (Thuong) temple) and were launched on 10 March, 2004.

Nearby the upper temple, we can see the Pearl Well (or Gieng Ngoc) with clear water and a big Gong-shaped rock with the sound like a bell. Standing from the upper temple, tourists can see the view of Elephant Mountain in the far distance and the magnific landscapes of the outskirts of Dalat. Visitors can go step by step to arrive Au Lac park.

On 10 of March (Lunar month) yearly, people often hold the Death anniversary of Hung kings and other activities like folklore songs of Bac Ninh, Thai dancing, K'ho gong performance, etc.