The cache can be collected quickly with a short walk (about 100m) from the nearby parking area (see waypoint). The river path runs from one end of town to the other and is about 5km long. If you have the time why not stop for a walk, a bike ride or enjoy a meal break along the river.
The cache is small but should be pretty easy to find. You will need to bring your own pen. Please watch out for muggles during the peak dog walking and running times of morning and evening.
You may well find two caches - I think there is another cacher playing games with this one.