A "Stag Do" is a celebration held for a groom-to-be before his wedding. It's a chance for him to spend time with his closest friends, often involving fun activities, games, and sometimes a bit of mischief. The event usually takes place a few weeks or days before the wedding and can range from a simple night out to an adventurous weekend getaway. Traditionally, the best man organizes the Stag Do, planning everything from the location to the activities. Popular choices include pub crawls, adventure sports, or even a trip to a destination city. The goal is to create lasting memories and celebrate friendship before the big day.