Recurring Babysitter For Two Toddler Girls

My two girls love to go to the park to play, go on stroller walks, play in the backyard and find fun games and projects to do around the home. We need a few hours every Saturday to be able to step out and leave the kids with someone. This time of day consists of their lunch time, the youngest's nap time & the oldest's play time. We also would like to build a rapport so we can hire for more hours in the future as the need arises. We are looking for a young, active, fun woman that can balance an inquisitive toddler and newly walking 1 yr old. We have a bus line that runs on our street. We have a medium sized dog who stays primarily in the garage and backyard. She is very sweet, friendly and energetic.