Viator Is my go to spot whenever I want to get a tour of some sort, to experience the locale.
The Media Boat tour in Manhattan was an absolute blast, and truly the only way I would want to see Manhattan and surrounds by boat. We all felt very safe in the hands of Captain Eric, it was a small group in a navy/Coast Guard style boat, which allows us to be in the open air and experience the sea, as it should be experienced. We saw sites from the Hudson River and the East river that we could never have seen otherwise, and we were treated to a show in the skies by the Blue Angels (this was not planned, we were just very fortunate ). I highly recommend this tour.