Park your car in Newtown and go for a little walk around Frog's Island. This walk should take you less than an hour. However solving the puzzles along the way may add to this time. Whilst in Ashford there are one or two other geocaches you may like to hunt out.
Many thanks to ggggeo2 and perkwhite for their invaluable assistance in providing much (nearly all) of the behind-the-scenes working of this cartridge
Before you start make sure you have the most recent version of the cartridge for this game. The most recent update was 2 October 2023 in which I moved the final location by a few yards
The cartridge you need can be downloaded from here:
From the experiences of those who have done this cache be warned that this is one of the trickier local Wherigos... If you are new to this game you might like to leave it until you've a little more experience