How about getting him a sailboarding lesson or rental at a nearby beach or lake? Or if he already has his own equipment, you could get him a new sail, a waterproof phone case for when he's out on the water, or a guidebook on different sailboarding spots around the world. Another option is to get him a sailboarding themed gift, such as a custom sailboarding t-shirt or hoodie, a sailboarding poster or artwork for his wall, or a sailboarding book or movie.
Or you can get him a star map with an important date you share.
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.