Hi - i am a nanny and have been working in/near sevenoaks for 18years - there is so much you can do in sevenoaks
look on
netmums and type in west kent - there you will find a listing of all the toddler groups - there are many to choose from and one at least every morning in different churches
there is also tumbletots,montys music,gymbabes,jo jingles,swimming activites/lessons
there are local farms 20mins drive at godstone,hopefarm in paddock wood and a small one near borough green
there are several soft indoor play areas, wear them out(tonbridge),manic monsters(edenbridge),our space(tun wells)
lots of coffe shops in sevenoaks
cinemas 15mins in car
lots of lovely park with swings etc, as well as knole park
as well as bluewater and shops 15mins m25 j2
hth