Babinda Boulders
Babinda Boulders is a classic example of the fast flowing tropical creeks that can be found in Far North Queensland. Babinda Creek lies in the foothills between Queensland's highest and second-highest mountain peaks – Mount Bartle Frere and Mount Bellenden Ker respectively.
This high coastal mountain range, the tropical location and the moist south-easterly trade winds are responsible for making the coastal strip between Tully and Cape Tribulation the wettest area in all of Australia, and as a result a constant supply of cool mountain water flows through Babinda Creek.
The creek channel is filled with massive smoothed granite boulders and lined with bedrock, all of which have been exposede and polished smooth by the water flow over millions of years.
Rock Pools (potholes)
Rock Pools (or potholes) form when a rock (or many rocks) is spun around in the same spot by a circular eddy of water that move against the main current of a stream. The force of the water and the sediment it carries is greater than the resistance of the rock. The constant abrasion begins to wear away the bedrock into a hole. Once started, the feature is self-reinforcing as the hole creates an even stronger eddy. The rock being spun in the hole is called a grinder and as one grinder wears away another rolls in to fill its place.
During the dry season, several potholes contain stagnant water filled with green algae, suggesting the potholes were created through solution. Regardless how slow, rock dissolves under the action of rainwater or groundwater charged with H2CO3 (carbonic acid) and naturally occurring organic acids.
To log a find on this earthcache you must answer the following questions to be sent via message:
From the listed Coordinates:
Look down at the creek bed, one of the largest potholes is closest to you
1. What do you think will happen with this pothole in the future? Will it get larger, or maybe disappear? Explain your answer
2. Do you think this pothole has been created by solution or abrasion? Explain why.
3. What evidence do you see that the potholes are still being developed and formed today?
4. Take a photo from the posted co-ordinates of yourself OR a personal item with the creek behind you and upload this to your online log
Please MESSAGE your answers to me using the the link at the top of the page underneath the name of the cache.
This method is preferred and I will reply promptly upon recieving your message. Otherwise an email is OK too!
Feel free to log your "Found It!" in the meantime, if any problems occur I will let you know
Most importantly thouugh, have fun and enjoy Babinda Boulders 
! WARNING !
You DO NOT need to leave the walkway / lookout to complete this Earthcache.
This creek has claimed many lives, wet rocks are extremely slippery. Do not swim in the main creek along "Devil's Pool Walk", which is the track you will be taking. For your safety please keep to the walking track. Swimming is only permitted at the swimming hole towards the right hand side of the parking area