Estimated cost dont appear to be more than $150.00 at the most.
Figure $62.00 for the camping and $62.00 for the rafting.
on the camping obviously people split the cost of each site depending on how many go.
Of course then there is food but again its only a long weekend so it wont be that much.
Unfortunately gas will be the big ticket for everyone this summer regardless of what you do or where u go.
Now if u will excuse me

Im taking today off and going fishing...even though I paid $4.85 for 75 gallons of gas

thats gonna be a pretty expensive fish.