Papahareswarar Temple, Uthukottai

A Divya Desam in the heart of Thiruvallur town where Vishnu reclines as Vaidya Veeraraghava, worshipped as a healer of body and mind.

A Shiva temple at Thirupachur, about 3-4 km from Thiruvallur town on the Thiruvallur-Thiruttani route, counted among the 276 Paadal Petra Sthalams, the 16th in Thondai Nadu. The presiding deity is worshipped as Pasupatheeswarar.

A Shiva temple in Kadambathur village, about 250 m from Kadambathur railway station and around 9 km from Thiruvallur. The area was once a forest of kadamba trees, giving it its name. The 13th-century siddhar Shivadeva is associated with worship at this temple.

A major Kosasthalaiyar-river reservoir supplying Chennai, with a landscaped garden that draws visitors when the sluices overflow.

A Shiva temple at Thiruvenpakkam near Poondi, on the northern bank of the Poondi reservoir along the Thiruvallur-Thiruttani road. It is one of the 276 Paadal Petra Sthalams and the 17th Shiva Sthalam of Thondai Nadu, with the deity known as Oondreeswarar.

An ancient Shiva Paadal Petra Sthalam revered as the site of the Oordhva Thandavam dance contest between Shiva and Kali, linked to saint Karaikkal Ammaiyar.

The 58th of the 108 Divya Desams, dedicated to Vishnu worshipped here as Bhaktavatsala Perumal, the lover of devotees, with his consort known as Ennai Petra Thayar. The temple is attributed to the Pallavas of the late 8th century. It is built in classic Dravidian style with a five-tiered rajagopuram and a granite sanctum.

A Shiva temple in Koovam village on the Cooum river, counted among the 276 Paadal Petra Sthalams and the 14th Shiva Sthalam of Thondai Nadu. The presiding deity is Thiripuranthakeswarar with consort Thiripurasundari.

An ancient Shiva temple at Thiruverkadu, distinct from the adjoining Karumariamman shrine, noted for its set of directional dikpalaka lingams. It is one of the older Shiva temples of the district and part of the Thiruverkadu temple cluster.

A northwestern taluk town near the Andhra border and the Kosasthalaiyar river, on the road toward Tirupati and the Periyapalayam Amman temple.

One of Tamil Nadu's most-visited Amman shrines, dedicated to the goddess Karumariamman and believed to be around 1,000 years old. The locality was historically a dense neem forest, which gave it the name Velkadu or Thiruverkadu. Sundays are the special day of worship and draw very large crowds of devotees.

An ancient Shiva temple at Vada Thirumullaivayil counted among the 276 Paadal Petra Sthalams, the 22nd in the Thondai Nadu region, and sung in the Tevaram hymns. The presiding deity is Masilamaneeswarar. The temple is regarded as more than a millennium old.