Kerala, an Indian state on the tropical Malabar Coast, has nearly 600km of Arabian Sea shoreline. It's known for its palm-lined beaches and backwaters, a network of canals. Inland are the Western Ghats, mountains whose slopes support tea, coffee, and spice plantations as well as wildlife. National parks like Eravikulam and Periyar, plus Wayanad and other sanctuaries, are home to elephants, langur monkeys, and tigers.
Update 1.1 Added naval routes, thanks to Seleukos for the suggestion.
A small map. Good for quick games. Not sure I agree with the assigned bonuses and playing with the settings I encountered of 1 unit per turn made it more difficult. Better suite to a technical player than the intuitive one.