How about gifting them a framed print of a beautiful nature photograph? You could look for a local artist or photographer who specializes in nature photography and choose a specific photograph that your friend would appreciate. Another option could be to gift them a photography book that showcases their favorite type of nature photography or a book on a specific location they love. You could also consider a gift card to an art store or framing shop so they can pick out their own favorite nature photograph to display in their home. Finally, you could even consider organizing a nature-themed photoshoot for the couple or gifting them a photography workshop or class to improve their skills.
Or you can get her/him a star map with the date of the wedding.
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.