I can swim, but I can't do strokes of any kind. I doggie paddle or swim like a frog. I never learned how to dive. I did take scuba diving lessons when I was about twenty, but only got to dive for a year or so, so it's been about 12 years since I did any diving. I'd have to retake the course, for sure. I have decent endurance, but again, I am not a stylish swimmer.