A 30th birthday party is a celebration marking the milestone of turning thirty years old. This event often includes friends and family gathering to honor the individual, typically featuring decorations, food, and entertainment. Common themes may reflect the person's interests or achievements, making the party personalized and memorable. Activities at a 30th birthday party can vary widely, from casual get-togethers to elaborate events. Popular options include themed parties, dinner celebrations, or outdoor gatherings. Guests often bring gifts, and the birthday person may receive a cake, symbolizing the transition into a new decade of life.