On Friday we went Whale Watching... my Christmas present for Sarah... It is the tail-end (no pun intended) of the Season as the whales have almost finished making their journey (with their new calves) heading south down the Eastern Coast of Australia. The Southern Humpbacks can reach a size up of up to 12 metres long and weigh up to 48 tonnes. They feed on krill, sardines, mackerel, anchovies and other small schooling fish.