On that day, it was very crowded and a lot of tourist/ cruisers. The wait was way too long. There were a lot of trolleys coming by, but they were mostly reserved for the folks to get back to another cruise ship. Only a few was reserved for the on going tour. We were waiting for over an hour to get on our tour. They did not do a good job of having the sign posted, so many were waiting on the wrong line, and ended up had to come to another line and waited or more. I do not recommended this tour for big group with elderly or children. The tour is informative. But that is about it! We did not do the hop on hop-off since we was waiting for so long to get on in the first place, and saw that many who wanted to get back on were turned down because the trolley was full. I think it would be nice that the trolley would stop at the most southern post a little so people can take pictures.
Overall, we did not have a good time with this tour.
Waited for a long time to get on a trolley, then didn't dare to hop off b/c hopping back in was not easy. The tour was great otherwise.
This tour is grossly overbooked and despite trying three times throughout the day we were unable to even board. Frankly it's worse than anything I have encountered.