fuertenavidad Multi-cache
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Difficulty:
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Terrain:
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Size: 
(small)
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Multi-cache around the ancient city of Cartagena
At the start point you used to find a historic naval artifact. It was a submarine, but they moved it inside a museum further down the quay. Still, this is a nice place to start the cache and look at the view of the port while working out your next coordinates. You needed to look at a plaque describing the item with launch date and decommission date. The dates on the plaque were 1888 and 1988. From this you can get A, which is the commissioning date - 1000 and B which is the decommissioning date - 1000.
To get to Point 2, use the following formula (don't forget the leading zero on the decimals for the North coordinate!):
Point 2
N 37 36.0(B - A - 1)'
W 000 59.((A / 4) - 4)'
Point 2 is a historic naval building with a carved emblem on the wall facing the street. The chain on the emblem is broken into a number of sections. Count the sections to get number C.
To get to Point 3, use the following formula:
Point 3
N 37 36.(161 - C)'
W 000 59.(253 + C)'
Point 3 is a Roman remain; count the number of columns (including the really short remains of one and the one on the floor!) to get number D. This is the same as the number of the columns on the tiled plaque on the wall.
To get to Point 4, use the following formula:
Point 4
N 37 36.((D x 10) + 202)'
W 000 59.((D x 20) - 34)'
Point 4 is a historic military building with an emblem on the wall facing the street, high above the main door. Count the number of cannonballs under the crossed cannons to get number E.
To get to point 5, use the following formula (don't forget the leading zero on the decimals for the North coordinate!):
Point 5
N 37 36.0(((E - 1) / 3) + 11)'
W 000 58.((E x 100) - 157)'
At point 5, you will see a tall elevator. Count the number of metal rings in the elevator structure to get number F.
Now you can proceed to the cache location using the following formula:
End
N 37 35.(B - A + F + D - 1)'
W 000 59.(B - F - 871) + ((E - 1) x C)'
Additional Hints
(Decrypt)
Gur pnpur vf haqre fbzr ebpxf whfg bss gur raq bs gur cngu gung tbrf nebhaq gur sbeg.