My problem is that indoor pools are still completely closed for at least another month (and I wouldn't swim in an indoor pool unless the majority of adults in the country were vaccinated, anyway). There is an outdoor pool in Cambridge that opened this week, but I no longer live in Cambridge, so getting there would involve catching a train and then walking for forty-five minutes either way. I'm not sure doing so is really justifiable, even on mental health grounds. But I'm glad you've been able to get back in the water again.