We live overseas with access to a pool but not to baby / toddler swimming lessons. DS (13 months) loves the water but I don't have a clue what I'm doing; at the moment we just spend a lot of time bobbing around in the water. This is fine, but I'm wondering if there's more we could do. What do they do in swimming lessons for babies this age? Should I get some water wings / one of those buoyancy jackets for DS?