You shouldn't feel guilty for not leaving the country. It is the best thing for the environment, but yes, getting that balance between frugal living and making sure you do enough to not have regrets later can be a balancing act. I saw a programme about someone who walked the whole costal path of the UK recently. He was pretty inspiring. You can have adventures at home. I guess that's what we've been trying to do in our caravan! I'd say it's been reasonably successful.