Aiyur Eco Tourism Park (Aiyur Reserve Forest)

Declared in 2014, this large sanctuary spreads across the Melagiri hill ranges in Dharmapuri and Krishnagiri districts, with its Krishnagiri portion falling in the Denkanikottai taluk under the Hosur forest division. It protects elephants, leopards, spotted deer and rich birdlife along the rugged Cauvery-basin terrain. The sanctuary forms part of an important elephant corridor linking Tamil Nadu and Karnataka forests. Access is regulated by the Forest Department to safeguard the wildlife.

This roughly thousand-year-old Vishnu temple in Denkanikottai town is built in the Hoysala architectural style and is counted among the traditional Divya Desam-associated shrines of the region. The presiding deity is worshipped as Devaperumal (Betraya Swamy) with his consort Lakshmi as Soundaryavalli. Its grand annual car (ther) festival in March-April is the town's biggest religious event, drawing devotees from across Denkanikottai taluk. The carved stonework reflects the temple's long medieval heritage.

A revered Vishnu temple in Denkanikottai town, known for its fine carvings and serene setting, dedicated to Krishna as Venugopala Swamy. It is noted for its annual car festival, traditionally held in May, which draws devotees from the surrounding taluk. Along with the nearby Betrayaswamy temple, it anchors Denkanikottai's temple heritage. The shrine reflects the town's long tradition of Vaishnavite worship.

A revered Muslim shrine (dargah) in Denkanikottai town that serves as an important place of worship for the local Islamic community and attracts devotees across faiths during its annual urs. It reflects the composite religious fabric of the Denkanikottai region alongside its temples. The shrine is one of the recognised holy places listed for the district. Its urs festival is a notable local gathering.

Thally is a green hamlet in Denkanikottai taluk, about 25 km from Hosur, ringed by hills and sitting roughly 1,000 feet above the surrounding plains. Its cool, misty climate earned it the nickname 'Little England' during British rule, and today it is a favourite scenic escape for its lake, gardens, rolling farmland and rock-climbing hills. The surrounding Thaliagiri slopes are popular with trekkers and climbers of varying skill levels. The valley's flower and vegetable farms add to its pastoral charm.

A dramatic ASI-protected hill fort rising over the plains near Rayakottai, strengthened during the era of Hyder Ali and Tipu Sultan and contested in the Anglo-Mysore Wars. The steep climb to its ramparts is one of the district's most popular short treks.

A dam across the Thenpennai river near Hosur that supplies drinking water to the town and irrigation to the region. Its reservoir and surroundings are a popular local picnic and outing spot.

Set on a hillock beside National Highway 44 at Hosur, this Shiva temple is reached by a flight of steps and is one of the most popular pilgrimage spots in the district, drawing hundreds of devotees daily from Tamil Nadu, Karnataka and Andhra Pradesh. Stone inscriptions trace its origins to the 11th-century Chola period under Raja Raja Chola and Kulothunga Chola, with Shiva worshipped as Chandra Choodeswarar alongside the goddess Maragathambigai. Its annual car festival falls in March-April, and the municipality maintains gardens, a children's park and an observatory nearby. The elevated setting also offers views over Hosur town.

Spread across two hillocks near Samalpallam, about 19 km from Krishnagiri town, Mallachandram is one of Tamil Nadu's largest megalithic burial complexes, with more than 200 dolmens (stone burial chambers) dating to roughly 1200-300 BCE. Excavations here have yielded black-and-red ware pottery, iron objects, cairn circles and urn burials, and some slabs carry rare prehistoric white-ochre rock paintings depicting hunts, houses and rituals. It is a protected Archaeological Survey of India site, though many chambers were damaged by treasure-hunters over the years. Reaching it involves a short walk up the rocky hillocks from the village.

A Shiva temple at Chinna Kothur listed among the notable temples of Krishnagiri district, where the deity is worshipped as Kundeeswarar. Like other shrines in the district it reflects Chola and Vijayanagara-era temple traditions. It serves as a village place of worship in the Krishnagiri area. The temple is a quiet devotional stop away from the main highways.

A large industrial and automobile-manufacturing city and the main gateway from Bengaluru into Tamil Nadu. It is a noted floriculture and rose-growing hub and a centre for leather and engineering industries.

This ancient Hanuman shrine on the Krishnagiri-Bengaluru highway is traditionally said to be around 2,500 years old and is famous as a wish-fulfilment temple. Devotees carry a saffron bag with coconut and betel leaves and perform eleven circumambulations while chanting, believing their prayers are answered within three months. A natural Nandi rock formation within the temple is revered as marking the presence of Lord Shiva. Its roadside location on NH44 makes it a popular stop for travellers between Krishnagiri and Bengaluru.