crowd control in yoe semitea has always been a work in progress. >> we have spectacular falls. but the worst of the worst is traffic, crowding, all of those kinds of things. >> reporter: and managing those crowds have has been a challenge for decades. >> for people to spend 45 minutes to an hour and a half or bitting the park trying to find parking. >> the park starting rolling out free shuttle buses. >> exactly for the time of the shuttle buses it was much worse. >> reporter: the long-term goal here is a change of culture. getting people out of their cars and onto bikes or this growing system of board walks built to protect the valley meadows. >> not only is it going to lessen the impact on the park but it's going to provide a better experience for people. we want people to come here and find that connection to the park. >> reporter: the other challenge is parking. >> people could come and camp in owe semitea and find out almost any place they wanted and set up a tent. >> reporter: and if you want to spend a few nights on the john muir trail you'll need a wilderness permit. bu