My son and I will be spending 3 or 4 days backpacking in Scotland, visiting from the United States, in late May/early June of 2019. I’m curious about the logistics of planning for this trip. I’m used to backpacking in the United States, where I typically plan our trip 6 months in advance, (securing transportation, permits, etc.). Can I attempt to do this so early, for a trip in Scotland? I’ve read online where some people suggest waiting almost to the week of their trip to make plans, because the weather could be anywhere from great to horrible. Additionally, I’ve seen posts that say that the weather can be very different in different parts of the country, and therefore I should have several options available to me — and then be prepared to choose the best option when the week arrives. Am I asking for trouble if, this early, I lock ourselves into a trip to Caringorms NP? BTW, I've put together a proposed GPX route from Aviemore that would take us from the Cairngorm car park, south through each of the five 4000s, then head East from the Devil's point and then north to Ben Avon, and then finally West back toward the car park. All in all, it is about a 70km (44 mile) loop. We are used to doing around 25 km days, in the United States. What can we expect for snow depths in the park during this time? Thoughts on all of this? Is this a good time for the Cairngorm NP? Should we be looking elsewhere in Scotland, instead? Should I be planning two trips at the same time and then pick at the last minute? Thanks!