The Surfing Pikachu (114 / 111) card can be found in the Rising Rivals set.
Recently sold 5 times and based on those sales is worth around £30.22.
Currently, there are 7 open listings for this card on ebay.
This card sells in the range of £20.56 to £39.88, making it quite stable.
This Rare Secret card was illustrated by Toshinao Aoki.