The park idea is great.
My suggestion doesnt always go down well, but have you considered childcare??
I started my boys at 12 months, simply for social interstion and sitmulation, jsut one day a week, and they have thrived on it, My eldest will attend until the middle of january next year, only taking the last two weeks before school starts to have some time out.
My youngest i started at 10 months old as she is so on the go, that when her brothers werent about she was going stir crazy. She still gets a little upset when i leave at times but it doesnt last more than two minutes, and the centre is happy to agree to send one of the boys into her class if she doesnt settle, but after almost 6 months of going this hasnt yet had to happen.
I highly recommend it for one day a week. smile
Sharon, 24, Qld, 2 boys 3 & 5, girl 1.