For those of you from the Boston area, I was about to fly along the Esplanade on the Charles River yesterday, but was informed (very politely) that the area was a no-fly zone due to helicopter traffic. Other than being within 5 miles to the airport (whose tower I planned to call prior to taking off), I couldn't find anything stating that it was illegal to fly there, other than a specific ban on the 3/4th of July of this past year. Does anyone know more about this? Whether it legal to fly here or not? Thanks!