Beyond the Bassein Creek lies a hidden gem. This is the Nagla Block, a pristine part of Sanjay Gandhi National Park. Nagla Block offers a tranquil escape for nature lovers near Mumbai.
Nagla Block is the northernmost part of SGNP. It is separated from the main park by the Vasai Creek. This makes it a vital corridor for wildlife. It connects SGNP to other protected areas to the north. Without it, wildlife in SGNP would be trapped. The south of SGNP is a dead end for animals. The east and west are blocked by urbanization. This makes Nagla Block essential for the movement of animals.
In 2003, a tigress resided near a stream here. This made the Nagla Block a central attraction. Naturalists flocked to catch a glimpse of her. Tiger sightings are rare. Still, Nagla Block offers the purest connection with nature. Dedicated conservationists protect wildlife in this national park.
Entering Nagla Block requires permission. Guards often patrol the area. This deters those who might litter or cause disturbance. However, the guards are friendly. They welcome those with genuine interest in nature.
The Block’s fringes boast rich wetlands. Freshwater streams and brackish waters create a diverse habitat. Deciduous forests mix with mangrove wetlands. This rich soil fosters abundant plant life. A nature walk here can last a full day. Paths wind through teak woods and bamboo. These lead to wetlands teeming with life. Keep your eyes peeled for insects and spiders. Rare butterflies have been discovered here. The Redspot and White Tufted Royal are among them. Birds like the Oriental Dwarf Kingfisher can also be spotted. Over 70 butterfly species can be seen in a single day.
Butterflies gather minerals from the damp ground. This is called mud-puddling. Males present these minerals to females as a nuptial gift. Gaudy Barons are a favorite. This is the best place in SGNP to observe them. Leafwings zoom across streams. They occasionally land on the banks for nutrients. Common Nawabs and Tawny Rajahs visit the creek side. Tigers and Pansies are common here. The Common Mime mimics the Blue Tiger butterfly. Pansies blend with the undergrowth. Their bright upper wings contrast with dull underwings.
Yamflies are brightly colored blues. They have brilliant orange underwings and red upperwings. Grass Blues are common near water. Guava Blues and Leaf Blues can also be found. Even the cupids like Plains Cupid and Indian Cupid can be found. Common Awls lay eggs on plants. Handmaiden moths fly during the day. They mimic wasps in appearance. Ant-mimicking bugs and camouflaged Katydids also live here.
Emerald Spreadwings are common damselflies. A Neurothemis dragonfly rests on the forest path. Ant-mimicking spiders are common here. They are hard to spot.
Nagla Block is a treasure trove of biodiversity. If SGNP is the lung of Mumbai, Nagla Block is its heart. It allows wildlife to move freely. This ensures genetic flow. Without Nagla Block, the future of leopards in Mumbai would be uncertain. The Nagla Block plays a vital role in preserving Mumbai’s biodiversity. Remember to respect the forest. Protect this precious corridor for future generations.