I found this one. Looks good and HD. Don't believe the official one has the beach person on it though I could be wrong.
Looking for something like this? I don't think it's full quality only 3200 x 3200 but at least you can crop it how you want
That's so awesome! Thanks for sharing. I found this great site which posted a couple dark and light theme wallpapers (of the same wallpaper) from WWDC17. There are links for Mac / iPad / iPhone (various sizes)
Enjoy guys! New events = new wallpapers.