For those who are looking to take a perpetual cruise on the Sydney harbour and enjoy the views, this activity for you. For those who are looking to visit several sites on the Sydney harbour, this is also for you!
While I wasn't able to visit Watson's Bay or Manly, I did get to visit Shark Island which gives you a secluded island with unbeatable views of the city.
The timetables do get a bit confusing and Capt. Cook operate several other cruises with similar boats so sometimes that can throw you off. Also they also have special timetables in effect for a particular day that can usually decrease service so keep that in mind, especially since you won't know ahead of time.