Ephemeral creek at Cape Tribulation Tropical Research Station
One outstanding characteristic of the Daintree rainforest is that it is very wet. Not only is there high atmospheric humidity (85% or more is usual), but the annual rainfall is often several metres a year. All of this water means that not only are there numerous permanent creeks flowing throughout the region, after a heavy rain, a lot of low-lying areas (like the station's property) suddenly find themselves criss-crossed by tiny, rapidly-flowing "ephemeral creeks" - bodies of water which exist only after a heavy rain. The one in the picture is on the grounds of the station.