Scheduled stops may vary with the season, to give you the optimum tour experience. For example, you may take a Lake Ontario cruise in the summer or visit gothic Casa Loma in the winter. If you wish to take a Maid Of The Mist boat tour through the falls then the best dates for your trip are April/May to October/November. Apart from bus tours, you also have the option of helicopter tours that take you above the rainbow colored foam and spray for incredible aerial views of the majestic Niagara Falls. You may choose to tour by private plane as well, with visits to many of the scenic areas that surround the Falls, accompanied by your own professional tour guide.