Can anyone help?

I have a chance to go on the Level 2 Coaching course in September. It's 5 days and I have childcare for 4 of them. Is there anyone who thinks they might be able to put up with my 2 for the whole day on Saturday 12th September??? I would be really grateful for any help. They do have swimming and Tae Kwondo lessons at the Riverside between 8.45 and 9.45 then between 11 and 12, which could pass some time. There is no problem for them to miss these though if it's inconvenient.
If no one can does anyone know someone who does Saturday childcare???
Thanks.