You can see how easy it is for ooze, goo and other nasty things to become a problem in the river. It's your job as future explorers to always be on the lookout for ways to keep our rivers clean for the explorers that follow us.
You can see how easy it is for ooze, goo and other nasty things to become a problem in the river. It's your job as future explorers to always be on the lookout for ways to keep our rivers clean for the explorers that follow us. 
