My wife and I will be in Inverness from Sept 18 through the 21st. We want to see the Isle of Skye and the Orkneys. Was hoping to take full day tours out of Inverness for both destinations, but that late in September, some of the options to Orkneys are limited. Would prefer not to rent & drive, but would do so if necessary. Would also be willing to fly into Kirkwall if that gives good options for Orkney tour. Suggestions please?