Welcome from beautiful, sunny south Florida. I grew up in Allentown and still have superior knowledge of all the LV courses, save the new layout at Hackett's in Easton. Doubles are a great way to meet other DG'ers. South Mountain is a fun par 3 course and while most holes have clear lines that if you hit them you'll get looks for two, there are a lot of trees to contend with, especially off the fairway (trust me, I learned to play disc golf on that course). I wish when I learned how to play I had that nine hole course they now have behind the Hanover Township rec center off of Jacksonville Rd. It's mostly open with some holes having some trees, but nothing really tight. If you like to commute, Wehr's Dam is pretty fun. Nice heady mix of open and tight holes with nothing longer than 350. It's in Orefield, Covered Bridges Park, actually. You can get there either from Cedar Crest or 309.
Upper Macungie Park off 100 in Folgelsville is a short 18 holer, about half open, half wooded as well, and nothing really long either.
Best of it to you on the Lehigh Valley courses, I still remember them well.