Located in the foothills of the Himalayas in Darjeeling, Mahananda Wildlife Sanctuary has over 300 different kinds of plantations. It's one of the best places to spot elephants and, if you're lucky enough, you might just be able to spot the Royal Bengal Tiger as well. You can spot over 30 different species of mammals here including Himalayan black bear, leopards, rare mountain goats (serow), porcupines, golden cats, sambar, spotted and barking deer, to name a few.