I am the owner of the "Twin Lakes Overlook" cache. I placed the cache when we were camping. We rented the pavilion below the breast of the dam. Hence I parked in the first parking lot going up the road, before you get to the fee booth. There is no fee at the first parking lot. When I placed the cache, we walked from the pavilion. It took about 45 minutes to walk to the cache location.
I wasn't aware that fees had to be disclosed. Fees seem to be so commonplace that I would just consider them another expense. I read the hiding a cache tutorial and didn't see any mention of fee reporting.
I have since edited the cache page with mention of the fees and parking areas. I hope this helps everyone from now on.
Next time that you record a cache, don't forget to include the price of the gas and wear and tear on you hiking boots.