I'll be visiting Scotland for 2 weeks in May with my 3 and 5 year old boys. We plan to spend about 4 days in Edinburgh and then head to Inverness. We'll base there (approx 5 nights) for day trips. Since it will likely be me alone with the kids, I'm wondering if it would be better to take the train to Inveness and rent a car there? Or is navigating from the airport (we'd go back there for car pick up after our time in Edi) to Inverness pretty easy? Appreciate any advice!