You can export your photos from the website by following these steps:
- Sync your account to gaiagps.com
- Log into gaiagps.com on your desktop
- Click the profile icon in the top right corner to reveal the drop-down menu.
- Select Photos
- Click on a photo in the list
- This will take you to a page that shows a full-screen preview of the photo.
- Right click the photo and select "Save Image As..."
Note: It's not yet possible to export multiple photos from the website.