At Point A count the windows you can see. Be careful not to step
into the street while you count. Call that A.
At Point B count the windows you can see. Count them again.
Count them a third time. Be careful not to step into the street
while you count. Call that B.
At Point C count the number of bricks in one horizontal row.
Round up to the nearest whole brick, and call that C.
At Point D count the number of rungs you'd have to climb to
change a light bulb. Call that D.
At Point E there is a five-digit number. Call that E. Count the
number of times the number appears, and call it H.
At Point F there is a big block of cement, engraved with a
number of lines of text. Call that number F.
At Point G count the number of green metal cages, and call that
G.
Multiply E by H and add F. Divide the result by a thousand, and
add half of C. The result is the complete minutes part of the North
coordinate of the final cache.
Multiply A by D. Add B and G. Subtract the latter from the
former. The result is the fractional part of the minutes part of
the West coordinate of the final cache. The non-fractional part is
the same as it is for all the intermediate waypoints.
If you like geeky math formulae, here they are:
N 33°yy.yyy W 117°49.xxx
where yy.yyy = (((ExH)+F) / 1000) + (C/2)
and xxx = (AxD) - (B+G)
The cache is a round Citrus Sours Altoids container. It has a
log and some tiny items. I checked the cache recently, with an eye
to replacing the container, but I found it not to be too rusty.
SillyCutie showed me the place on the lid where you can press with
your thumb to make the container open easily. I had not noticed it
before.
Thanks to YourBuddyBill for beta-testing this my first puzzle
cache.