Disc golf, also known as frisbee golf, is a flying disc sport in which players throw a disc at a target, using rules similar to golf. The sport is usually played on a course with 9 or 18 holes, each consisting of a teeing area and target. Cornwall Park features a 9 hole course set among towering trees.
For instructions on how to complete a Reverse Wherigo, refer to the next section. If you already know what to do, read on.
Locate the tee, a brick rectangle on the ground. Two distances to the target are listed. Multiply them for a 5 digit number, ABCDE.
Substitute the following digits:
C143E0
(B+C+D)70486
25(C-B)(E-D)52
The final is vertically OB (out-of-bounds) and a special tool may be needed to retrieve.
This is a Reverse Wherigo cache.
To find this cache, you must:
(1) collect information from a plaque near the listed coordinates;
(2) use that information to solve a simple puzzle;
(3) input the solution into a Reverse Wherigo game cartridge (aka "box") which will lead you to the cache container; and finally,
(4) you must sign the logbook to claim a find.
You can download the Waldmeister Reverse Wherigo cartridge to your GPS or smartphone here. To play on a smartphone, you will need a Wherigo player app, such as Wherigo for IOS or WhereYouGo for Android. To find out if your GPS supports Wherigo, see this forum thread.
Start the Wherigo game cartridge and enter the two letter language selection (en for English). Select your preferred distance units (meters or yards). Read the instructions for using the cartridge. Select Play. The cartridge will then ask you to enter the three lines from the puzzle above.
It is suggested that you take these numbers with you on your journey. They will be needed if it becomes necessary to restart your player for any reason.
The general idea of a reverse Wherigo is that you "query" a "box" that knows where the cache is hidden. You can ask as many times as you like, but the box only gives one kind of answer: the current distance to the cache. If you want to take a moment to see how that's done, Halemeister created a nice YouTube video showing how he solved a reverse Wherigo.
When you have reached the final, you will be given some statistics on your quest. If you wish, you may enter the details into your log, and also post the number of times you calculated the distance.