Bathe in between the red and yellow flags - this area is patrolled by lifeguards. Ask a lifeguard or adult about conditions if you are unsure. No inflatables - they easily get swept out to sea by wind or current. Check danger spots Check warning flags and notices. Learn to spot and keep away from the dangers.
Cold water can kill.
New places may have hidden dangers that you do not know about. Always ask someone who knows. In Swansea there is no swimming allowed at any inland water area. Always read the signs erected around water and do what they tell you. Never go close to or into water alone.