I have played quite a few rounds here since the last flood and agree with captain jack that the course has never played better that it does right now (at least for me). My first rounds here last summer were scary because of the thick under growth ~ which has been knocked down considerably by the flood so it's hard to lose a disc right now unless you throw one in the river on #4 or #6.
Here is a link to the course brochure ~ good map of the holes if you scroll down a bit.
http://www.ci.arlington.wa.us/documents/Parks%20Rec/discgolftoweb2.pdf