From what I have read, yes we can go fishing, and with one other person not from your household. And we can travel for 'exercise' and fishing has been confirmed as permittable exercise. But as for how far you can travel, that is a matter for your own conscience. I did see it was advised to stay within your own county. All of us here seem to have a decent amount of common sense, and we all know that fishing is an ideal pastime with reference to Covid19, as you are out in the fresh air and can easily practise social distancing. But I think trips to Cornwall from London, or venturing up to Scotland after Skate may be frowned on! Stay safe out there. ??