Create the basics of a water theme park using blender, just need one long open waterslide with water flowing, whatever can be done in lets say less than 4 hours, just one condition, step by step, so i everytime something important is added, save it as a new file, this way i can understand the basics of how it is done.
If you're open to other software, I can help, I have a lot of experience in Maya, and if you need to insert the blender models, I can give you anything as obj.