My daughter didn't appreciate Ocean Park at 13 months of age. We took her half a year later and she was terrified of the mascots there. I would imagine that your daughter could be terrified of Mickey and all the other mascots too at Disney.
It wasn't until my daughter turned 2+ that she started to really enjoy going to Ocean Park and Disney (she could suddenly relate to the princesses) and loves Disney now. I had an annual pass for Ocean Park last year when she turned 2 and we're getting a Disney one for her this year.
I think at that age the children are free. So you would only need to buy a ticket for yourself. Theres not too many rides for real littlies, but I'm sure she would love the winnie the pooh ride, and Its a small world when it opens soon, the colours are so bright, and the buzz lightyear ride because of the colours. Even just walking around, theres lots to see and explore for a little one that age. Banging on the drums, running in and out of the water at the totem poles.