Occasional Sitter Needed For 2 Children In Villas

I am looking for an occasional sitter for my two kids age 2 and 4. There are no exact dates or times just yet but I'm hoping to find a match before we are there for the summer so that the adults can have time away from the house every now and then. We would love someone who is a high school or college student. You would not need to drive the kids anywhere. CPR certification preferred. Occasionally my mom's dog will be at the house, he is big but very friendly and happy to just hang outside all day and run back and forth in the yard. The kids and I spend our summers in the Villas every year - from the beginning of June through the end of August so if we find the right person, we'd love to have someone that could continue helping us out as the kids get older! Thanks in advance!