I would expect to pay about $20-25 each way. IMHO unless you're planning to get HAMMERED at lunchtime, by the time you walk around the park for a few hours in the afternoon/evening it's likely to be out of your system when it's time to drive back.
i'm a bit confused by this post.....can't you drink in WDW?...
i've seen lots of drunks in pleasure island so they're certainly boozing on something .....
there's also lots of liquer flowing in the boardwalk area and i've smelled the beer all over the place in epcot....so why would you have to go to sea world to drink?