Floating National Park Identification

The question asks to identify the national park globally recognized as the world's sole floating national park. This unique designation refers to a park primarily composed of floating vegetation or islands formed naturally.

Keibul Lamjao National Park: The Floating Sanctuary

Keibul Lamjao National Park, situated in the Bishnupur district of Manipur, India, holds the distinct title of being the world's only floating national park.

• Defining Feature - Phumdis: The park's uniqueness stems from the extensive 'phumdis' that dominate its landscape. Phumdis are described as large, heterogeneous masses of soil, vegetation, and organic matter that accumulate over time and float on the surface of Loktak Lake, the largest freshwater lake in Northeast India.
• Habitat for Sangai: These floating islands provide the exclusive natural habitat for the endangered Sangai (Rucervus eldii eldii), also known as the Manipur brow-antlered deer. The park is crucial for the survival of this species, which depends entirely on the phumdis for food and shelter.
• Ecological Importance: Keibul Lamjao National Park is a vital component of the Loktak Lake ecosystem, contributing significantly to wetland conservation and the protection of endemic flora and fauna. Its floating nature is a direct result of the lake's ecological processes.

Analysis of Other National Parks

The other options provided represent significant protected areas but do not share the characteristic of being a floating national park:

• Sundarbans National Park: Located primarily in West Bengal, India, and Bangladesh, this park is renowned for its vast mangrove forests and is a UNESCO World Heritage Site. While it is a wetland ecosystem intersected by numerous water channels, it is not characterized by floating islands.
• Bhitarkanika National Park: Situated in Odisha, India, this park is recognized for its dense mangrove forests and serves as a critical habitat for saltwater crocodiles. It is a significant estuarine mangrove system but lacks the floating island characteristic.
• Gulf of Mannar Marine National Park: Located along the southeastern coastline of Tamil Nadu, India, this park is a marine protected area. It safeguards marine biodiversity, including coral reefs, sea turtles, and dugongs, but it is an underwater and coastal ecosystem, not a floating park.

Based on its unique ecological feature of being composed of floating islands, Keibul Lamjao National Park is the correct answer.