ISO - mountain bike with 24" wheels to borrow/rent

We have a cousin in town to visit our son this summer and we are hoping to borrow a bike for him to ride during his stay.  Our guest is 10 years old and not a downhill biker, so we won't be riding hard trails.  The bike would be mostly used just around town and a few days at a campgrounds.  

The dates we are in need are July 7 - July 14th.

If you have anything that you could spare for the week we would love to hear from you and happy to pay a weekly fee.

If you have something that might fit, we would love to hear from you.