Nabq Bay is pristine and peaceful, thanks in large part to its status as a protected area. Here, mingle with dozens of species of flora and fauna amid the mangroves or dive into the sparkling water to explore the nearby coral reef. "Wild" (unguided) snorkeling is popular here—happy swimmers bob along as peacefully as the undisturbed wildlife. More adventurous travelers can venture into the desert on one of the many popular quad tours.

Want a taste of being royal? Eat in Hyderabad, where culinary traditions have been passed down from the Nizam monarchy. Arabic, Turkish and Mughlai influences are easily recognisable. The city is famous for its rich, aromatic biryani made with lamb, chicken or vegetables and served with fragrant basmati rice. Satisfy your sweet tooth with double-ka-meetha, a bread pudding.

Though most simply pass through Coimbatore on their way west, tarriers are rewarded with a lively street-food scene, city museums, and parks. Add in easy access to the hilltop temples surrounding the industrial city, and you have a raw gem waiting to be discovered.

The people of Tamil Nadu consider providing food to others a service to humanity. Thus the service in the state capital, Chennai, is first-rate. Treat your senses to some of the richest South Indian flavours in traditional dishes like sambar, rasam, fish curry or kootu. And don't forget to have a cup of full-bodied Tamil coffee, enhanced with chicory—no visit is complete without it.

Blossoming bougainvilleas, crumbling cathedrals on leafy boulevards and 18th-century colonial buildings colour the former French colony of Pondy, which sits on the Bay of Bengal. But it's also unmistakably Indian, with colourful festivals throughout the year, several mosques and the Sri Aurobindo Ashram. Quiet beaches stretch north and south from town, good for swimming and sunrise strolls. Pondy is a popular weekend getaway destination from Chennai and is easy to navigate on foot or by bicycle.