4K HD Wallpaper: Surf Board on the Beach
Derek Key took this photography with the surf board from Huntington Beach. If you like it or need it, the image can be downloaded under CC By license from courtesy of Derek. Here's optimized for fit in desktop backgrounds and homescreen phones.
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with many tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many phones)