Part of the Wet Tropics World Heritage Area, the two mirrorlike, rainforest-fringed crater lakes of Lake Eacham and Lake Barrine are believed to have formed more than 12,000 years ago following a volcanic eruption. Both have an average depth of 65m. Barrine is the largest of the two, and is cloaked in old-growth rainforest; a 5km walking track around its edge takes about 1½ hours. Look for the enormous 1000-year-old kauri pines.
On a hot day, folks from the coast swarm up to Lake Eacham for a dip – and some turtle-spotting – in its cool, clear waters. There are sheltered picnic areas, a pontoon and a boat ramp. The 3km lake-circuit track is an easy one-hour walk.
You won't have to worry about saltwater crocs, though a freshie occasionally cruises around Eacham.
To the local Ngadjonji and Yidinji people the lakes were known as Barany (Barrine) and Yidyam (Eacham)