The route through the 10 caches is intended to be family friendly with mostly easy walking along a well surfaced towpath, though a couple of caches are a few metres off the main path and one is down a track and over a road, about 100 yards or so from the towpath. Hopefully it'll give you a good morning / afternoon stroll on a nice day. The route is mostly alongside the canal though, with a few locks on the way, so be careful with little ones. You can either start in Woking (plenty of parking and easy train access) and do them in order, or park at St John's Lye in St John's village and go in reverse order. There are usually a lot of muggles around on the towpath, so you'll need to be discreet.
This one is off the towpath a short way, and you'll need to cross a busy road so be careful with little ones. The cache is about a metre from the road, so be careful when looking.
This one is a green clip box.
Please make sure that the cache is put back properly and covered up to avoid mugglage.
If you're going in reverse order you might want to do GC26H1F: Tristan's Towpath Trundle I next as it's on the way to the next one of ours.