Don't give up on the project just yet. Delamination is often completely fixable and depending on where on the boat it is...may be somewhat harmless, but still should be fixed.

Delamination on a Hobie 18s bow / deck is far less common, so I will assume this delamination is in the seating area between the crossbars. Try the delam fix shown on the Hobie Cat support page. I have personally done this with excellent success on several occasions.

http://www.hobiecat.com/community/viewtopic.php?t=1156