Mountains, or beaches? I'm greedy enough to want both, but it is rather difficult to find the former within Chennai. The beaches, on the other hand, are a favourite spot for Chennai's citizens. The only thing that could be more fun than doing cartwheels on the beach is to end those with a dive into the water.
Just that over the past couple of weeks, with the jallikattu protests and the oil spill, the beach has had a jolt; but it will be back, like it always has!