We visited a very interesting exposition in the state library about the exploration of Antarctica called Finding Antarctica. Its discovery was linked to the exploration of Australia and to the mythical southern land called Terra Australis Incognita that was believed to exist since the Greek times. The greeks were right!
We also visited the Sydney Aquarium in Darling harbor, one of the best I have ever been (the other being Monterrey Aquarium in California). They had two species of giant crabs that I have never seen alive before; the Tasmanian giant crab and the Japanese spider crab. Amazing creatures!
On the weekend we took the ferry to Manly and relaxed on the beach. This is must-do trip when in Sydney!
I hope next time I will be back sooner.