We're thinking of going for a week in a cottage with our two children aged 11 and very nearly 3 in late July or August. We would like to go by train, travelling to Arrochar and Tarbet and renting somewhere very near there. I'd be interested in any comments about the area for a holiday with children in general and comments on what it's be like without a car. The option is there for us to take the car if we need one.