Tourism in Northeast India is famous for both its distinctive Himalayan culture and its many national parks and natural attractions, including waterfalls, forest reserves and some of the longest and deepest limestone caves in the world.
Kakoijana reserved forest - Kakoijana reserved forest is famous for Golden Langurs. Langol Reserved Forest - It is known as the "lungs of Imphal Valley" for its wide stretching area span in the Imphal valley. Besides, it is famous for the sacred groves which were preserved since ancient times for religious belief. Langol Lairembi Temple and Langol Ningthou Temple are great religious destinations for people of Sanamahi Faith in North East India. There are innumerable islands and islets in several lakes of the region. Some of the most beautiful and famous are: Thanga Island - It is the largest island in the Loktak Lake, world's only floating lake, situated in Bishnupur district of Manipur. It is a great tourist destination for adventure and a religious destination for both Hindu and Sanamahists. It is also famous for its numerous temples as well as sacred sites. Karang Island - It is the second largest island in the Loktak Lake. It is a great religious destination, famous for the residence of two great Temples, Ebudhou Khuman Apokpa Temple and Ibudhou Khumanpokpa Temple, temples of the ancestral Deity of the  Khuman Dynasty of Manipur. Majuli - Majuli or Majoli is a large river island in the Brahmaputra River, Assam, India, famous for Vaishnavite Satras. The island had a total area of 1,250 square kilometres (483 sq mi). Majuli is the largest river island and the first island district in the Indian subcontinent. It is also recognised by Guinness Book of World Records as World's Largest River Island. Tamenglong - Tamenglong is a Hill station in Tamenglong district of Manipur. It is famous for the scenic natural beauty as well as for fruit groves. Kaina Temple - It is a Hindu temple in the Hill top of the Kaina Hill in Thoubal district of Manipur. It is a great religious destination for Vaishnavite followers from across the country. It is famous for the grand feasts performed as well as for the scenic beauty of the hillside. Loktak Lake - Loktak Lake is the largest freshwater lake in the entire Northeast India is famous for its phumdis (heterogeneous decomposing mass of vegetation, soil, and organic matters) floating over it. Keibul Lamjao National Park, the only floating national park in the world, floats over it. It is near Moirang in Manipur state, India. Moreover, Loktak Day is a great annual event for the Lake. Pumlenpat Lake - Pumlenpat is the second largest lake in Manipur situated in the Thoubal district of the state. Small islands and islets are the awe inspiring views of the lake. Besides, it is famous for the rich marine life and phytoplanktons. Madan Kamdev is a famous archaeological site in Kamrup district of Assam. The Indian state of Meghalaya is famous for its many caves, which attract tourists from India and abroad. A famous one is Mawsmai caves near Cherrapunji are the limestone caves, lies near the village of Mawsmai. Meghalaya is famous in the world for its deep caves such as the Siju Cave; Krem Liat Prah is the longest cave in Asia. 
