As much as I'd love to see a coaster like this, it would be very rare. The idea actually isn't far-fetched, but like everyone else said, money would be a real hassle.
I wouldn't be surprised if SFMM tried something like this, though..
One of my favorite shots I took at Silver Dollar City a few weeks ago. https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-snc7/424938_367802409920221_100000713964930_1170796_2121483868_n.jpg Then there's this: https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/426205_367808649919597_100000713964930_1...
As much as I like it, there aren't any large bodies of water to call it a "boardwalk". Not necessarily understanding where they got the name, but I guess it suits. On the other hand I'm stoked for the park. Very nice to see developing going on in this place- it's been dead in the water for a few yea...