Light footwear doesn't last on rocky surfaces or in rivers. If you have tender feet, try wearing two pairs of socks, a smooth light pair on the inside. Warm clothing - several warm underlayers is best.
Polypropylene is good, or wool.
Hat, sun cream,, sun glasses, gloves. Two to three litres in summer, half that in winter Food - lunch and plenty of snacks. Everyone must be equipped for all weather conditions. Ring the trip leader a day or two before the tramp so you are expected, and to confirm details. You are then welcome to join the Club.