Location: Tirunelveli District, Tamil Nadu

Declared: 2005

Area: Around the Thamirabarani riverine stretch near Thirupudaimaruthur (2.840 ha)

Main Features:

Known for nesting colonies of herons, egrets, cormorants, and painted storks.

Riverine habitats and large old trees provide ideal nesting sites.

Important for the conservation of waterbirds and wetland ecosystems.

Location: Kanyakumari District, Tamil Nadu

Declared: 2015

Area: Approximately 483.920 ha (spread across 3 wetlands)

Main Features:

A famous cluster of freshwater wetlands.

Supports thousands of migratory birds like painted storks, pelicans,darters, spoonbills, herons, and egrets.

Key habitat under the Important Bird Areas (IBA) network.

Wetland–agriculture landscape supports rich biodiversity.

Location: Coastal areas of Thanjavur, Pudukkottai, Ramanathapuram, and Thoothukudi Districts (Palk Bay)

Declared: 2022

Area: About 44834.00 ha

Main Features:

India’s first Dugong Conservation Reserve.

Protects dugongs (sea cows), a vulnerable marine mammal dependent on seagrass beds.

Also home to sea turtles, dolphins, seahorses, and diverse marine life.

Ensures community-based marine conservation and sustainable fishing practices.