Good for you. It's tough. Everything seems far and difficult to get to. But if we never try, then we are guaranteed to never succeed.
While I am not an ocean swimmer, I discovered last August that I love swimming in an outdoor pool. Last month I got regular access to an indoor pool. Not quite as incredible, but still so relaxing. I am actually a terrible swimmer, but I love moving around and exercising in the water. I abhor exercising so this is a first. My favorite part is always float time. I lay on my back suspended by the water. The best is outdoors when I can lay and watch the clouds go by. I feel part of the sky for a moment.