What do you enjoy doing with your baby ?

My best friend and I both have babies and made plans to go out the day before Mother's Day. My baby turns 7 months on Thursday and her son is almost a year...We are having a hard time choosing on what to do that day. We have gone baby gear shopping before many times, going to the park (several locations), the zoo and aquarium of the pacific. What is something you enjoy doing with your LO when going out ? Any ideas on what we could do ?