Dieng plateau has a million dazzling beauties, with an extraordinary natural and cultural wealth. In this region, in addition to shady green trees and beautifully patterned Hindu temples, here is also a beautiful natural gift called Telaga Warna, (the Colorful Lake), an icon of this area. Located in the Kejajar District in Wonosobo, Central Java, this beautiful lake with its surrounding natural forest is one of the prime tourist destinations in the Wonosobo regency. To reach this lake from Wonosobo, it is an approximately 25 miles’ drive.
The harmony of nature with its clean, cool air makes the atmosphere at Telaga Warna Dieng very compelling and relaxing. The mystical atmosphere created by the white mist that envelopes the area, as well as the tall, shady trees which surround the lake, exude a feeling of refined calm and relaxation. A visit to Dieng would not be complete without passing and witnessing the beauty of Telaga Warna in person. From here you can also visit the Pengilon Lake, Goa Semar, Goa Jaran, and the Sikendang Crater.
This Lake is appropriately named Telaga Warna due to a natural phenomenon that causes the water of the lake to change in fluctuating colors. At times it is green, yellow, purple or even taking the colors of the rainbow. This phenomenon occurs because of the high sulfur content in these waters, so that when the sun hits the water, it reflects in varied colors. You can also see around the center of the lake, a section of water which appears to be bubbling; which is also due to its high sulfur content.
Hidden among the range of hills at an altitude of more than 2,000 meters above sea level, it does not make Telaga Warna (the Colorful Lake) lacking in visitors. Its beauty and mystery have attracted many visitors to Dieng. The water at most times appears calm, with no ripples at all. The sound of the wild birds chirping and the well preserved, wild forest creates a reassuring atmosphere of peace. Telaga Warna is also very useful for the community. They use the water of the lake as a source to irrigate their potato and cabbage plantations which are major produce of this region.
You can follow the edge of the lake and you will find a small balcony to sit and relax while enjoying the beauty and diversity of nature that surround it. There is also another excellent location where to enjoy the beauty of this lake other than being right on its edge. You can climb to the top of one of the hills bordering the lake along a narrow trail. This dirt road is very narrow, with just enough room for one person to pass at a time. The climb is not so steep, but is slippery enough since the Dieng area is known for its high rainfall. After a few hundred meter climb, you will reach the top of the hill to witness a spellbinding view. Spread out down below is a beautiful lake surrounded by thick forests with beautiful purple colored water around the edge, shaded in green in towards the middle, and pale green towards the center of the lake. On the other side, a narrow meadow separates it from another lake called Telaga Pengilon, or the Reflecting Lake. Further ahead, Prau Mountain and Pakuwaja Mountain form a circle, as if created to protect these two beautiful lakes from any harm.
From this hill, you will also see another beautiful lake called Telaga Pengilon, meaning the Reflection Lake. This lake earned its name from its waters being so transparently clear that you are able to see your reflection in it. Story has it and local residents believe that this lake can know the inner feelings of the human heart.
Around Telaga Warna, there are several ancient Dieng caves worthy of a visit such as the Gua Semar Pertapaan Mandalasari Begawan Sampurna Jati. In the front of this cave is a statue of a woman holding a water pitcher. This cave also has a small pool whose water is believed to cure diseases and make the skin more beautiful and reduce the appearance of ageing. Other caves that may be of interest are Gua Sumur Eyang Kumalasari, and Gua Jaran Resi Kendaliseto. The caves around this area are often used as a place for meditation.
The Dieng Plateau Theater provides complete information on the different spots to visit and latest happenings around Dieng, so paying a visit there might be of help.. DPT (Dieng Plateau Theatre) is equipped with tools for audio and visual performances. DPT has 100 chairs for audiences. This facility was designed as an education center and a way to introduce tourists to this area.It is located on the slopes of Sikendil Hill, near to Tenaga Warna.
Sumber : http://www.indonesia.travel/en/destination/804/dieng-s-telaga-warna-the-color-changing-lake