How about gifting your boyfriend a waterproof fitness tracker that he can use while swimming? It will not only help him track his swimming activity, but it will also be helpful with his overall fitness. Another idea can be a personalized bathing suit with his initials or his favorite color. You can also plan a surprise trip to a resort with swimming pools or a beach destination to celebrate the occasion. A stylish beach towel or swim shorts with his favorite team's logo or color can also be a great gift option.
Or you can get him a star map with the date of your anniversary.
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.