The negative shows that the acceleration is pointed towards the center of the circle (opposite the radius), hence it is called centripetal (i.e. center-seeking).
Participants are typically seeking a life-changing experience: a boost to improve their health, build their confidence, mend relationships or overcome past difficulties.
A new generation of fellwalkers may arrive seeking to overthrow the traditional perception and feeling no compunction at adopting the highest ground as a summit.
