There has been some discussion about getting a group of us together and hiring a houseboat to do a river cruise along the golf course route in SA.
I have checked out a site and we could hire a 12 sleeper boat for approx $5k a week - possible better deals but this is a starting point. If we have enough interest we can move forward with this idea and set a date that suits all.
Example of Houseboat
Please comment if interested