How about treating him to a parasailing adventure? You can book a session for him at a nearby beach or lake with a reputable company that offers this activity. Additionally, you could plan a picnic on the beach or a romantic dinner afterward to complete the day. Alternatively, you could also consider buying him a waterproof camera, which would allow him to capture great memories during his parasailing experiences.
Or you can get him a star map with the date when he 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.