Spend a meaningful 4-day trip in Seoul, South Korea, engaging in volunteer work and immersing yourself in the local community. Seoul offers several opportunities for volunteering, allowing you to make a positive impact while getting to know the city and its people. Start by joining local organizations that support underprivileged communities, such as teaching English to disadvantaged children or participating in community improvement projects. These activities will not only enrich your travel experience but also provide a chance to interact with locals and gain deeper insights into Korean culture and society.