First day on Wonder I got in the line and was queried by the screener as to why I was there. Told her and she said they could not do it. Went back to guest services a day later and they were happy to do it. Go figure!
I found Park Cafe to be lacking on Wonder. I did like that El Loco Fresh opened at 11:00 on sea days and we ate there several times, finding everything fresh and tasty. On the sister ships I have never found El Loco open before 2 PM. They really should reconsider the hours on the sister ships as it was heavily visited on Wonder. I am not thinking food at 2 PM...altho I realize many do.
It is €50 without appointment. See flycovid.com. We used them. Our appointment was at 1:00 pm but we were almost 90 minutes early and they took us. There were about 5-6 in each line ahead of us. Pretty efficient.