I had the oppertunity to visit the Matsya Darshini public aquarium in Visakhapatnam during my trip to the port city in mid - June 2017. Located on the famous 'Ramakrishna beach', this is quite a popular tourist destination and is both frequented by tourists and locals. However I had (maybe - ) the rare privilege of being the only visitor that day. Matsya Darshini aquarium houses a moderate collection of marine creatures, which is not disappointing however. If you are visiting the aquarium then don't miss to visit the tank of the very intelligent 'Giant Gourami' fish (the last one from entrance, adjacent to the office).
Ramakrishna Beach & Dolphin's Nose Hill - Visakhapatnam | Soumo's Travelbox
View of the famous 'Ramakrishna Beach' and the 'Dolphin's Nose Hill' of Visakhapatnam, India. I was there in June 2017. The travel blog story to be updated shortly. You can watch the video vlog of the beach here: