Hop on hop off tour dublin city the dublin city tourhas been carefully designed to give you the freedom to explore and experience the history andculture of dublinat your leisure visit all the maindublin attractionsalong the routeincluding dublin zooandtrinity collegehome of the book ofkells your 1day ticket allows you to hop on and off as often as you wish you have greater flexibility to tour dublin city with the hop on hop off tour tours begin at0900and can be joi