This series is almost 6 miles long (there and back) over reasonable terrain. the path itself is mostly wheelchair and pushchair accessable though there is a gate to prevent motorbikes accessing the path that may be a hinderance to some wheelchair users.
This series could link nicely with the Beware Of The Beast series around Goytre reservoir in which case it becomes more like 8 miles.
This cache requires a little bit of climbing and depending on how tall you are may be a bit of a stretch, please be carefull of young geocachers as the streams current can be deceptive.