What is the best way to save digital photos to ensure their long-term preservation and accessibility?

The best way to save digital photos for long-term preservation and accessibility is to store them in multiple locations, such as external hard drives, cloud storage services, and physical backups like USB drives or DVDs. Regularly back up your photos and keep them organized with descriptive file names and folders. Additionally, consider using metadata and tagging to easily search and retrieve your photos in the future.