I agree, when the weather is good there shouldn’t be a problem at any age. Swallow water is warmer then the rest of the sea water. I would make sure the baby doesn’t go under the water with the face though as they can drown from ingesting water. Secondary drowning, or delayed drowning, occurs when a child inhales even a small amount of water into her lungs. Anytime a liquid gets into the lungs, it can cause inflammation and irritation, which makes breathing difficult.

If they are warm enough I would think 4 months once they have had their vacs.

If the weather is good, I don’t think there is a problem at any age.

It depends on the season and the weather – the ocean is freezing at the moment! Learn to swim starts from 4 months, first vac at 12 weeks – I’d use that as a guide. I’ve seen little ones turn blue after being in the ocean they are far more sensitive than us. My daughter was close to one when my husband took her in but I was so worried that if she slipped out of his hands, she’d be swept away forever. There’s rarely hot showers at the beach to warm up either