レッツゴーツアー We are committed to being a hub for quality tours that makes it easy to search for and compare tour companies. Tour companies that present programs on the website must have a valid tour business license from the Department of Tourism (TAT) and have been in business for at least 5 years. However, the above qualifications are only a basic guarantee. Let's Go acts only as an intermediary media channel to help interested people find information and is not involved in sales in any way. Therefore, please thoroughly review the credibility of the tour company before deciding to book.