I think #1 Pochantus, is right...you probably just have to get really lucky to happen across him ... But he is in the MK parade, and Fantasmic! (and probably other shows/parades).
But if you really really really want to try and get a picture/autograph, when you first arrive at the park (MK would probably be your best bet...but I'd check everywhere if it's really important) ask at guest relationships, they can call the C.H.I.P. hotline and find out if he might be out somewhere during the day for meet and greets. They should also be able to give you the location and hopefully a time.
Good luck!!!!
Thanks for all the great advice...my 2 1/2 year old says "prince Eric" every time she is asked who she wants to meet or get her picture taken with. We'll be on the lookout and will ask around until we find him! At least she'll see him at parades and Fantasmic even if she dosen't get to meet him!
My DD is an auto junkie. I have looked on a lot of websites and compiled a huge spreadsheet of the Characters, and locations. I have never seen him, but it does say he is an alternate at the princess breakfast at Epcot. We have gone 3 times and never been lucky enough to find him there.
Best of luck, hope you find him.
Man! My husband will be so dissapointed if Prince Eric is in the grotto holding Ariel's attention! My goodness, as it is now he practically pushes my kids aside to get first photo with her and her seashells.