Bolludagurinn, commonly referred to as Bun Day, is an Icelandic holiday marking the start of Lent. This day is celebrated with various traditions that include the making and eating of cream-filled buns, often enjoyed with family and friends. The preparation is festive, with bakeries across the country creating beautiful and delectable buns for the occasion.

The holiday is rooted in the tradition of using up rich foods before the fasting period of Lent begins. Families usually gather to enjoy these treats, and the event often involves playful customs, including the whipping of family members to symbolize the end of indulgence and the beginning of sacrifice. Schools and community centers also hold special events to educate the public about the holiday's significance and its cultural relevance in modern Icelandic society.

As Icelanders celebrate Bolludagurinn, it serves not only as a culinary event but as a reminder of the cultural heritage that binds communities together. With increasing globalization, holidays like this play a pivotal role in maintaining local traditions and fostering a sense of identity among the population, highlighting the importance of preserving such customs in an ever-changing world.