Thinking of flying up to Scotland from the south for a few days over English half-term (last week of october). Can easily fly to Edinburgh, Glasgow or Inverness. Kids are 3.5 and just 6 and are happy outside in raincoats, and are keen to go looking for Loch Ness (I could easily lie to them as to which Loch they are looking at). Where would you recommend for 3-4, at most 5 nights? Happy to hire a car if need be.