Unlike a traditional geocache, there are no trinkets to trade (although travel bugs, geocoins, WheresGeorge dollars, and other travelers are welcome). Instead, you will find a logbook, a hand-carved rubber stamp, and a stamp pad. If you have your own stamp, stamp the logbook, otherwise sign your name. Then, stamp your own logbook or a piece of paper with the stamp in the box.
Begin at the parking lot for Arcadia Trail Park, near the intersection of Island Park Drive and Ash River Road in the Park Glen subdivision in north Fort Worth. The latitude and longitude coordinates of the parking lot are N32º53.359 W097º16.705.
Start on the south side of the playground, and seek the word START engraved in the sidewalk. Walk 39 paces (a pace is two steps) south from START along the path to the bench on the right. This would be a good opportunity to see how your pace compares to mine (mine is rather LOOOONG). You may also want to have a seat and contemplate the journey upon which you have embarked. Many an adventurer has grown faint-hearted, and turned back at this point.
Continue west along the paved pathway for 100 paces to THE ARACHNID’S DINNER TABLE. Count the number of vertical bars supporting the table and benches. Multiply that number by 1.5. This is Clue #1. Be careful you do not become a dinner guest.
Continue west along the pathway for 69 paces to THE ESCAPE ROUTE. If the journey has become too terrifying, you may wish to take this alternate route and return to safety. If you choose to continue your perilous journey, look for a pair of initials in the format
AB
+
YZ
Substitute the letters in the initials you find for the letters in the example. Use the following key to decrypt two numbers to substitute for the initials
A=0 B=0 C=7 D=5 E=8 F=2 G=1 H=5 I=4 J=7 K=6 L=6 M=1
N=6 O=9 P=3 Q=2 R=9 S=3 T=4 U=3 V=8 W=4 X=2 Y=1 Z=5
For instance if the initials are RL + NP, substitute 96 + 63, then add 96 + 63 = 159
Now, take your answer, and double it. In my example, 159 x 2 = 318. This is clue #2.
Continue west along the main pathway for another 78 paces to THE BRIDGE OVER THE VENOMOUS RIVER. Cross the bridge, and travel THE PATH OF NO ESCAPE, which ventures off the main trail on which you have been traveling, at a heading of approximately 130º.
After 30 paces, look for a sign on the right.
From the sign, look for THE SPIDER’S LAIR. Clue #2 is the bearing, and Clue #1 is the number of paces. This is where the treasure is located. The best approach is to circle around from the other side. Be careful NOT to trample the local flora, causing social trails to develop. Beware the sting of the sharp tentacles, as they can tear flesh. Also watch for roving spirits, whose eyes will be upon you, and who wish to steal the treasure from its hiding place.
This letterbox/cache is also listed at Letterboxing.org