India Mangrove Forests Beyond the Sundarbans: Gujarat, Odisha and Karnataka Coastal Ecosystems Worth Visiting

Gujarat holds roughly 1,140 square kilometres of mangrove forests along its coastline, the second-largest mangrove cover in India after West Bengal. The Gulf of Kutch, in particular, carries stands of Avicennia marina so dense that the canopy closes overhead at mid-tide. The Marine National Park at Jamnagar is the entry point most visitors use, though the mangroves at Nal Sarovar and the Banni grassland fringe are worth the extra drive for anyone who wants to move between ecosystems in a single day.

Flamingos are the headline draw, and the Gulf of Kutch delivers them in numbers that make Nal Sarovar look modest, up to 30,000 lesser flamingos have been recorded in a single count during winter months. But the forests themselves are the point. The pneumatophores, the pencil-like breathing roots that spike up through the mud, are more visible here than in the Sundarbans because the tidal range in the Gulf is extreme, sometimes exceeding five metres. At low tide, you walk through a root city.

The best time to visit is November through February. Boat permits for the Marine National Park are issued through the Gujarat Forest Department office in Jamnagar. Accommodation is available in Jamnagar city; there is nothing inside the park itself.

Bhitarkanika National Park in Kendrapara district contains the second-largest mangrove forest in India, covering around 672 square kilometres. It is also one of the few places on earth where you can watch saltwater crocodiles, Crocodylus porosus, in genuinely wild conditions. The Brahmani, Baitarani and Dhamara rivers drain into the Bay of Bengal here, and the brackish water they create is exactly what the mangroves and the crocodiles both need.

The forest is dominated by Heritiera fomes, the sundari tree, along with Excoecaria agallocha, which local fishermen call the blind-your-eyes tree because its latex causes temporary blindness on contact. Boat safaris run from Dangamal, the main entry point, and the guides are forest department staff who know where the crocodile nesting sites are and will keep the boat at a respectful distance. Olive ridley sea turtles nest at Gahirmatha beach, just outside the park boundary, the mass nesting, called arribada, typically happens between January and March.

Bhitarkanika is not a comfortable trip. The nearest town with reliable accommodation is Rajnagar, about 15 kilometres from Dangamal. The roads flood seasonally. Go for that reason.

Karnataka's mangrove forests are concentrated in Uttara Kannada district, particularly around the Kali river estuary near Karwar and the Aghanashini river estuary further south. These are small forests by Gujarat and Odisha standards, Karnataka's total mangrove cover is under 250 square kilometres, but the species diversity is higher than the size suggests. Rhizophora mucronata, Bruguiera gymnorrhiza and Sonneratia caseolaris all grow here, and the Aghanashini estuary in particular has been identified by the Bombay Natural History Society as a priority conservation site.

The Kali river estuary is accessible from Karwar, which has a naval base and a functioning tourist infrastructure. Boat trips into the mangrove creeks can be arranged through local fishing communities; there is no formal permit system as of the last forest department update. The Devbagh beach area, at the river mouth, is where the mangrove edge meets open sea, you can kayak from one environment into the other within twenty minutes.

What Karnataka offers that the other two states don't is proximity to other ecosystems. Dandeli Wildlife Sanctuary is 100 kilometres inland. The Goa border is 15 kilometres north of Karwar. A four-day circuit that takes in the Kali estuary mangroves, a Dandeli river camp and a day in coastal Goa is entirely practical.

All three forests are tidal, which means timing matters more than in a land-based wildlife destination. High tide pushes water through the root systems and makes boat access to the inner channels possible. Low tide exposes the mud flats and the pneumatophores, and is when birds and crocodiles are most visible on the banks. Ask your guide or the forest department office for the local tide table before you plan a morning or afternoon on the water.

Mangrove forests are not photogenic in the way that hill stations or desert landscapes are. The light is flat inside the canopy, the colours are brown and grey-green, and nothing moves quickly. The reward is different, it is the density of life in a place that looks, at first, like it should not support any. A single square kilometre of healthy mangrove forest sequesters carbon at roughly four times the rate of a tropical rainforest, according to research published in Nature Climate Change. The trees are doing something enormous and doing it quietly.

The three forests together cover habitats that connect the Arabian Sea coast, the Bay of Bengal coast and the Western Ghats edge. Each one sits at a different kind of threshold, between river and sea, between forest and open water, between the India most visitors see and the India that has been there much longer.