Check that the pool water is warm enough, ideally around 32 degrees Celsius or higher, since babies lose body heat much faster than adults and cold water can quickly become uncomfortable or unsafe for them. Wait until your baby has had recommended vaccinations and your pediatrician has given the go-ahead, usually around two to six months old, since young infants have less developed immune systems. Hold your baby securely with support under the head, neck, and bottom at all times, since babies cannot yet control their own head movements and need full physical support in the water. Enter the water slowly and let your baby adjust gradually rather than submerging them right away, since a sudden change in temperature or sensation can cause distress. Introduce gentle movements like kicking or floating on their back only when your baby seems calm and comfortable, since forcing new sensations before they are ready can create fear of the water rather than enjoyment. Keep sessions short, around twenty to thirty minutes, and always stay within arm's reach, since babies can tire quickly and constant supervision is essential for safety in water.