salgo60 answered in note https://www.openstreetmap.org/note/3838180 that https://grillplatser.nu/Grillplats/Visa/Hustegaholm-2 might have pictures of the bbq I couldn't find. Looking at the picture I see a soccer goal that is visible on the Lidingö ortophoto which gives that the placement of the note is about 50 m south east of the actual bbq. Will do another survey at some point.