Add a little color to the vacation photos

Quick answer：

To add color to vacation photos, you can use photo editing software such as Adobe Photoshop, GIMP, or mobile apps like Snapseed or VSCO. These tools offer various filters and adjustment features that can enhance the color and vibrancy of your images. Common adjustments include adjusting brightness, contrast, saturation, and using color correction tools to ensure the colors are accurate and appealing.