"Length of Stay" park passes?

[Chattyaholic]

When checking in at the campground, can you purchase "length of stay" or park-hopper passes too, or do you have to buy those at the parks?

 

[christinou]

Tjhere are no more "lenght of stay" passes, but yes you can buy your tickets when you check in.

 

[clkelley]

However, they are less expensive if you purchase them online, even the day before you leave, then pick them up at willcall at the first park you go to.