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Thymallus Thymallus: Cache archived.


Phobias I - Acrophobia

A cache by Liimes Send Message to Owner Message this owner
Hidden : 04/27/2004
3.5 out of 5
5 out of 5

Size: Size: regular (regular)

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Geocache Description:

This is the first cache in the series of phobia caches by Liimes. Suffering from the fear of heights might make it impossible for you to even try this cache, but it should offer a challenge for anyone. The most important thing in this series is to conquer your fears.

This is a three-step multi-cache featuring high places in the Otaniemi region. To go after this cache you must be very confident with your climbing skills, as there is a definite risk of falling and even of fatal injury. The first step does not involve climbing but the in the last two steps you have to climb at least to a height of 10 meters from the ground.

You should not go for this cache during daylight. During the day there will be a lot of geomuggles around all of the steps. All of the sites should be easy locate even in the dark. If you have problems finding the correct locations, there is an additional hint for each of them.

The first target is not in the given coordinates but can be seen from there. The target is a metal pipe that is located in the highest spot visible to the initial coordinates. To make sure you don't see unrelated objects, think that you're looking from the ground level. You will have to determine the pipe's length and diameter (in centimeters). Doing this from the ground level is very demanding but not totally impossible.

The coordinates of the second step can be calculated using the dimensions from the first step using following formulas:

Let the caliber or the diameter of the inside of the pipe (rounded to the nearest centimeter) be A.
Let the length of the pipe (rounded down to the nearest centimeter) from the longest visible edge be B.
Both A and B can be factored into two primes. They don't have a common divisor and neither has 7 as a factor.

The latitude of the second step is N 60° 11.X minutes, where

X = (A+B)*4
The longitude of the second step is E 024° 49.Y minutes, where
Y = (B-A)*24

The second step is the easiest of the three and there you can find the coordinates to find the final cache. The hint is hidden on top of a construction.

The third and final step is the most demanding. The cache is small to a regular size glass jar and is hidden behind some sort of a ventilation duct. If you can use the rope here to secure you from falling, that will be most advisable. It might be diffucult to rest on the top, so signing the log will require some acrobatic skills.

A bonus for added challenge: When you find the actual container, you will notice that it is not as high as it could be. After you have signed the log, feel free to return the cache to the highest possible level. If you take it there, I'll take care of its maintenance.

Useful equipment:

  • Binoculars
  • A rope
  • A pair of shoes suitable for climbing
  • A pair of gloves
  • A flashlight
  • A map
  • A calculator

Additional Hints (Decrypt)

[1st step]: Gur cynpr vf rnfvyl pyvzonoyr.
[2nd step]: Gur pbafgehpgvba vf ivfvoyr sebz gur arneol ebnq.
[3rd step]: Hc gur fybcr naq gura fgneg pyvzovat.

Decryption Key


(letter above equals below, and vice versa)



118 Logged Visits

Found it 92     Didn't find it 4     Write note 13     Archive 1     Needs Archived 2     Temporarily Disable Listing 2     Enable Listing 1     Needs Maintenance 1     Owner Maintenance 1     Post Reviewer Note 1     

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Coordinates are in the WGS84 datum

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