How about getting your granddaughter a nice digital camera? This will enable her to take beautiful photos of nature whenever she wants. You could also look for a photography class nearby that specialises in nature photography. Receiving a voucher to the class will give her the opportunity to improve her photography skills and hone her craft. Additionally, you can frame a photo she has taken and erect it in a wooden frame to give her something tangible to remember your kind gesture.
Or you can get her a star map with the date when she was born.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.