The International Billfish Tournament is an event held by Club Nautico in San Juan. Fishermen can enter the tournament, and are fishing for blue marlin. Whoever catches the biggest (overall in length and weight) wins the tournament and gets a trophy commemorating their success. Even if you aren’t fishing, just watching the tournament in itself is very fun to watch. You can also go around and visit the local shops, should you wish to do so. This event takes place around late August or early September.