This, is the Brazilian Pygmy Gecko (Coleodactylus amazonicus). They range in size between 2 and 4 cm (0.8 to 1.6 inches) but most amazingly, are unsinkable! Despite being vulnerable to rain drops, this gecko has evolved a hydrophobic skin enabling it to to walk, and sit on water.
A video of one in action, courtesy of Life by the BBC
