Casual babysitter for 3 kids in Freshwater

We just moved to Freshwater from the Netherlands. We're looking for a casual babysitter 3 days per week, 4 hours per session. This would be until beginning of february, when school starts. We're flexible in our schedule. We have two boys (Oliver & Diederik, aged 10 & 8) and a daughter Juliette, 5 years old. We'd expect you to take the kids to the beach, stay at home and play games with them, or bake something.

We're looking for a student looking for some extra work, or a senior in high school.