browser . as a result some of the functions and features on this website will not work correctly . we recommend that you update your browser to the latest version immediately . update microsoft internet explorer note for windows xp users ie8 is no longer supported for your operating system you can still upgrade to a secure modern browser such as google chrome or mozilla firefox fall season sale book by october 17 & save 10 % with code fall16 . terms & conditions usd find a reason to go tours activities & fun things to do search view all destinations sightseeing everywhere . discover and book thousands of tours and activities who we are since 1910 gray line has been a trusted provider of traveler experiences and sightseeing tours in the world s most sought after locations . helping you discover a new destination that s our passion with hundreds of local offices our team of on site experts is there to help you see the sights and do the things that you just can t miss . what we do from paris to patagonia and the grand canyon to the great wall of china we offer more than 3 500 things to see and do on six continents . guided tours or adventure activities iconic landmarks or hidden gems we ve got you covered now it s up to you to find a reason to go find a reason to go australia experience world class nightlife cuisine and entertainment in cities such as sydney melbourne and perth and explore some of the most notable attractions including the great barrier reef kakadu national park and kangaroo island . no matter where you decide to go we have you covered . check out the best things to do and see in australia go now the bucket life original video series we say life is more than a to do list ... it s a journey to live for to celebrate the true meaning of travel its beauty and its ability to bring us together as a human race gray line has launched an original video series the bucket life . take a minute to watch the fifth full episode and imagine yourself in munich . or watch the original trailer here for the bucket life . findareasontogo venice findareasontogo argentina findareasontogowashington dc gray line magazine 10 reasons to visit the galapagos islands now delve deep into what makes the galapagos a unique and special destination . read the story findareasontogo get fun stuff from us sign up to be a gray line insider and receive info on exclusive deals discounts contests and more sign me up follow us for even more fun stuff follow us for even more fun stuff your gray line home about destinations magazine travel agents customer supportcontact us faq top destinations paris london new york san francisco rome washington d.c. charleston munich rio de janeiro beijing top tours & activities neuschwanstein new york tours savannah trolleys normandy tours quebec city tour stonehenge tours london tours versailles tours grand canyon dc night tours terms & conditions privacy policy copyright 2016 gray line corporation inc. home about destinations agents faqs aud cad chf kr . dkk eur gbp kr nok kr sek usd