Christian Wilkes and his 17 month old son Olly, who is already a keen swimmer, pictured in a pool in Bristol. See SWNS story SWSWIM; Little Olly Wilkes is a real-life merman – after learning to swim before she could walk. The waterbaby has baffled experts with her ability to swim more than 14ft (four metres) unaided and without armbands at the age of 17 months. Proud dad Christian, 39, began taking him to the local pool at the age of eight weeks like he did with the rest of his children. But the industrial maintenance roofer was shocked when he discovered Olly’s ability to paddle around the pool without his help so young.