You can use this free image under the Creative Commons Zero (CC0) public domain license. Please add a credit line next to the photo in your design, a suggestion is provided above the image.
Resolution: 4898x3265 pixels (16 MP)
Print size: 16.3" x 10.9"@300 dpi
Print size: 41.4cm x 27.7cm@300 dpi
Size: 1000 bytes