Which dam / lake, Steffo 
Awesome looking spot, but I wouldn't like to take a boat out through the trees!
The first two pics are at Lake Nuga Nuga, between Expedition NP and Carnarvon NP. The second pair are at Lake Victoria, about 50k North of Biloela.
Nuga Nuga has great wildlife, with birds ranging in size from finches to emus, 'roos, echidnas and 'Warning', lots of field mice. A bloke camped there in a hybrid had an infestation and had to drive back to Injune to get some traps, poor bugger. He thinks, from the droppings, that they got in through the slide-out kitchen!