Turahalli Forest

The Thurahalli Forest or Thurahalli Park is a dry and deciduous forest. It is located about 20 km from Bengaluru off Kanakapura Road. It is 13 km from Banashankari and can be overseen from the NICE road. Entry inside the park has been banned for vehicles, however, it has become a hot spot for cyclists.
It has a nice view and a small Shani temple on top of a rocky hill. As of today, Thurahalli forest is said to be Bengaluru's only surviving forest.
Rocks in the forest provide one of the few outdoor bouldering opportunities to the cities residents and have multiple established routes.
Wildlife.
Flora.
The majority of trees are eucalyptus. During August, the orchids ("Habenaria roxburghii") bloom, giving a brilliant white colour to contrast the green of the forest. The rocky terrains are great for lianas, the most common being Opilia amentacea. They bloom during the summer. These are mostly located in the Northern edge of the forest, surrounded by figs ("Ficus tinctoria"), nerale-mara ("Syzygium cumini") and rocks. The most common herb is the "Byttneria herbacea". It blooms throughout the year. Its flowers attract many beetles. Legumes, specifically "Indigofera karnatakana" are found here. "Ixora pavetta" bloom during the summer. They have an intoxicating fragrance.
Fauna.
Many animals can be spotted, including spotted deer, wild boar, hares, jackals, lizards, mongooses, etc. Turahalli is also famous for its bird population, which includes rare jungle birds like Eagle-owl, Sirkeer malkoha, common flameback woodpecker, and blue rock thrush, in addition to relatively common jungle birds like peafowl, green bee-eater, paradise flycatcher, white-throated fantail flycatcher, jungle babbler, rufous treepie, black drongo, white-breasted kingfisher, pond heron, spotted dove, purple-rumped sunbird, oriental white-eye, barn swallow, red-rumped swallow, small minivet, white-browed bulbul, red-vented bulbul, common iora, oriental magpie robin; birds of the plains like rufous-tailed lark and pied bushchat, in addition to common urban birds like house crows, jungle crows, common mynas, black kites, brahminy kites, blue rock pigeons, Asian koels, and more.
Activities.
Turahalli offers excellent biking trails. It is also among the few places within the city for natural rock climbing in addition to Avathi and Raogodlu. Rocks are granite, with various sizes and shapes. Many climbers practice regularly, in preparation for local or international competitions. 
Endangerment.
The forest is the last one surviving in Bengaluru. It has slowly been encroached upon. It has also been used as an illegal garbage dump, which has negatively affected the wildlife. Frequent fires during the summers, both natural and those caused by locals, have significantly impacted certain species of plants that grow in this forest. The BBMP also opened a sewage treatment plant near the forest. There is also a problem with poaching. Land has also been illegally cleared to grow crops. Over the past few years, efforts have been made by nearby residents to clean up and to prevent further encroachment and dumping of waste in the forest.