The river trail has a few dips and a generally sloping path down river but a lot flatter than the lake.
I think the biggest drawback is having to slow to almost a stop then start again over and over.
It nay be easier once I lose weight. I have been up, down and back up.
Being 67 in a month lugging around 250lbs takes a lot of the fun out of it. It just doesn’t come off nearly as fast or easy as it went on.