An excellent short trip on the fast boat - the day we went it was not too busy but the 4 of us enjoyed it and it lasted a good 45 mins from start to finish - we did not get as wet as anticipated
Its very fun but the actual high speed action is short; maybe only 10 min.
This was SO MUCH FUN!! What a great time! Word of warning though, don't do this at the beginning of your hot day in Boston, you'll be walking around town w/sea salt all over you! Would definitely recommend the ride!