How to spend a day in Vizag

I will be in Vizag for a day, from 10 AM to 6 PM. This is just an intermediate stop in my journey to another destination. Hence this specific strolling begins and ends at the railway station. How can I best spend this time—either by visiting some place or just working on my laptop someplace peaceful? I've already been to beach, Simhachalam and kailasgiri.