The Tarkanath temple where Lord Shiva  is worshipped is situated in the town of  Tarakeshwar, West Bengal.  It was built in the year 1729 in the 'atchala' structure with a 'natmandir' in front. There are also shrines dedicated to Kali and Lakshi narayan. Dudhpukur Tank is situated north of the Tarkeshwar temple. Devotees invariably take a bath in the tank as it is beleved that it fulfills the wishes and prayers of the devotees.The legend also connects the tank with the building of the Shiva temple. The water of the tank is believed to have curative  powers.

http://en.wikipedia.org/wiki/Taraknath_Temple

Kalighat Kali Temple

This sacred tank is located to the south east of the Kalighat temple.  In the 16th century 'Sati-Ango' (the right toe of Sati) was discovered in this tank.It is believed that a person who takes bath in this tank will be blessed with  a child. The water of the tank is considered to be as holy as that of the Ganga. Efforts to drain this tank have failed, indicating that a  subterranean stream is  running underneath the tank.

http://en.wikipedia.org/wiki/Kalighat_Kali_Temple

Lalbandh, Krishnabandh & Pokabandh

There is a group of temples -  Rasmancha, Jorebangla Temple of Keshto Rai, Pancha Ratna Temple of Shyam Rai, Madanmohan Temple, Lalbandh, Krishnabandh & Pokabandh, Bishnupur Mela located at  Bishnupur, a town about 130 km from Kolkata. They were constructed by the Malla kings during the 17 th and 18 th  centuries AD.There are also a large number of tanks which were built to provide water to the villages and to prevent enemy attack.

http://www.westbengaltourism.gov.in/web/guest/bishnupur-attractions

Haldapukur Tank , Kamarpukur

Haldapukur Tank is situated in the peaceful environs of  Kamarpukur village which is  the birth place of Sri Ramakrishna. It has recently been re - excavated. During the life time of Sri Rama krishana, the water of the tank was used for bathing, cooking s and drinking purposes. It is said that once the Holy Mother Sri Sharadha Devi came to Kamarpukur and wanted holy Ganga water. Sri Ramakrishna assured her that the water of the tank was as holy as that the Ganga. Even today, before any auspicious ceremony the people take a bath in the tank

http://www.mustseeindia.com/Kamarpukur-Haldapukur-Tank/attraction/14084

Rabindra Sarobar 

Rabindra Sarobar, an artificial lake named after the great poet  Rabindarnath Tagore is situated in the city of Kolkata. It covers an area of 73 acres and is one of the popular recreational places in the city. The area has been extensively planted with trees, shrubs and plants and attracts a large number of migratory birds. The lake is also home to many varieties of fish. However of late, the lake has been subjected to degradation due to the large number of prople visiting it.The water has become polluted. The Ministry of Environment and Forests has included the lake under the  National Lake Conservation Plan and efforts are on to clean it up.

http://en.wikipedia.org/wiki/Rabindra_Sarobar