We took the full island cruise which lasted 2.5 to 3 hours. As I suspected this is too long for two teenagers who got fidgety after about an hour but that's my fault and not the company concerned, but be warned if you are travelling with children.
The host was an older gent named Bob and he was really interesting, well versed on his topics and added a sense of humour.
From the boat we learnt more about the history of Manhattan, the five boroughs and their differences, passed under at least eight bridges, saw the Staten Island ferry leaving, sailed completely round the Statue of Liberty, saw all the key sites along with some lesser known points.
There are toilet facilities on board and a reasonable choice of food if you are hungry.
Would definitely recommendMore