Dreaming about swimming can be a sign that you are looking for answers in your subconscious mind and are exploring your emotional levels. It is a common dream experienced by those who are feeling emotionally off balance or seeing a counsellor for support.
Dreaming about swimming away from something is a sign that you are afraid to face up to an issue which has been bothering you. The refusal to confront the issue will cause you more problems in the long run as it will not go away by itself. You are letting your emotional responses take control over your rational response.
If you dream that you are swimming completely underwater this is a sign that you are being consumed by your emotions and you need to come to terms with how you really feel.
Dreaming about children swimming in your dream represents the ideas of innocence and being free and could be a sign that you need to bring some of these qualities into your life.