Recently joined the Diamond Tours Blue Mountain/Three Sisters/Scenic World with its "Dinosaur theme"/Sydney Zoo/Sydney Harbour ferry small group day-tour and I had a very enjoyable time. The Blue mountains region offered spectacular natural scenery, lots of photo opportunities of the Three Sisters geologic features, Scenic World's steepest railcar ride was fun, we enjoyed time at the zoo closeup with koalas and kangaroos, and our knowledgeable tour guide/driver named Helder, worked hard to provide continuous historical, cultural, touristic and interesting facts about Sydney and Australia, with his unique sense of humor, almost comedic style. Well done, Helder! For those seeking a fun, actionpacked, full-day tour outside Sydney, I highly recommend this tour.