I picked campsite B but I didn't vote on the cafe one because personally I didn't like the spots you had in mind for it. However, I like that little area for the campsite. I actually just set up a campsite in pretty much the exact same spot (though my plaza is where the pond you have it) and there is the little beach ramp next to it. If you can, I'd suggest making at least two squares of room to the left of the campsite, if possible, if you choose that spot. It'll make it easier/faster to access the ramp than if you had the campsite any closer.