Possible change in type of ticket, help?

[DisneyCAL]

DH is thinking about going to a water park. As of now we have the magic your way with park hopper. Can I add on the water park fun (park hopper plus)? If so will it cost essentially the price of 4 tickets to the water parks or the difference btw 8day park hopper and 8day park hopper plus? What number would I call to ask about this or make the change?

 

[Alesia]

It will cost the difference between what you have now and an 8-day park hopper plus.

I don't know if you can do it over the phone, but you can just take care of it when you get there.

 

[supersnoop]

It's a simple upgrade, but the price depends on several factors.

https://www.disboards.com/threads/all-about-tickets-at-wdw.3570721/#post-56958170