Pet Sitter Needed

Hello there. My wife and I are looking to get some exercise for our 45-pound cattle dog and 20-pound chiminpin. They are cute and well behaved. We are hoping to find someone who can pick them up and take them somewhere for a walk (they get enough walks in my neighborhood). Taking them to a dog park would be another option. Or to an actual park to run and paly fetch, tug, etc. I just want them to have something to look forward to other than the one or two walks a day they currently get. I could see paying $50 all-in for each two hour "playdate". Thanks!