As we were staying in north Goa, so for the second day, we had already booked online, one day tour of south Goa, being organised by Goa Tourism Development Corporation (GTDC). The tour had to commence from Calangute Residency, a GTDC hotel at Calangute, which was around 5 km from our resort, so we took a cab to Calangute Residency. This hotel is a property of GTDC and situated at one of the most promising locations in Goa, right at the Calangute beach. Since we reached there early, so we utilised our time in having a heavy breakfast at Sagar Ratna, which is just opposite to Calangute Residency. Finally, when all fellow travellers arrived, the bus moved from Calangute Residency.Our first destination was Abyss Marine Fish Aquarium, which was a private property. It houses many species of aquamarine creatures.