water park "plus feature" question

[Partridge4ever]

I've ended up with 11 child water park plus feature visits left on 4 different tickets. My oldest DD just turned 10, so she can't use them. My younger DD is 6, so we're OK w/her for 3 more years. Is it possible to upgrade some of these to adult?

 

[seashoreCM]

Your 10yo may continue to use the tickets that were hers.

At any time, she may prefer to wait until about age 13 when she looks much older than 10, she can exchange any remaining tickets of hers for adult tickets with the same remaining admissions at no charge.

Disney hints:
http://members.aol.com/ajaynejr/dispass.htm

 

[Partridge4ever]

Does exchanging them work with plus features though or just regular park days? We've already used up the park days. I have to admit, we used the child ticket this time because it never dawned on me until we were in a restaurant AFTER doing Blizzard Beach earlier in the trip. She just turned 10 at the end of February. She's very tall for her age, so I don't think I'd try it again on our next trip.