This is a walk of a little more then 4 miles through a unique and alternate landscape. Through the area Rijnsoever you walk along the green belt to a path along the Dunes Coepelduinen. You wander along in the wilderness, enjoy the breeze at the beach and walk along the drainage canal to the recently modernized junction canal.

There are 11 questions to answer. With the right answers you shall find the stash above the fresh water bubble.

Park your car at this parking place of a well known chain of supermarkets.

N 52 12.762 - E004 25.055

WP 1 Fence N 52 12.818 - E 04 25.037

Which name is on the fence in large black letters?

A = value of the second letter of this name.

WP 2 Route N 52 12.889 – E 04 24.720

What kind of route is this?

B = value of the third letter

WP 3 Sign N 52 12.815 – E 04 24.725

What kind of duty is warranted here?

C = how many times the letter E appears in this duty?

WP 4 Entree N 52 12.846 – E 04.24.846

What is the name of this dune in the “Hollands Duin”

D = value of the first letter

WP 5 Intermediate waypoint N 52 12.921 – E 04 24.467

In connection with the breeding season this waypoint is not accessible from the 15th of march untill the 15th of august. You can walk straight on to WP6. Dogs are not allowed in the “Coepelduinen”.

WP 6 Fence N 52 12.889 – E 04 24.298

Which number shows up three times at this fence? This is E.

WP 7 Information board N 52 12.854 – E 04 24.236

Of which landscape is this area a good example?

F = value of the letter of the first letter

WP 8 FNRS N 52 12.743 – E 04 24.172

What do you have to clear away?

G is the numer of the letters of this word.

WP 9 KRB N 52 12.823 – E 04 24.046

How many steps are there before you can enter?

This number is H.

WP 10 Brittenburg N 52 12.647 – E 04 24.069

How many soldiers are fighting here against the sea?

I = the number of soldiers.

WP 11 Junction N 52 12.514 – E 04 24.404

Which number has this junction?

J = the number of this junction.

WP 12 Camping N 52 12.688 – E 04 24.604

With which letter start the three names below the crown and what is its value?

K is the value of this letter.

Walk further along the path. After 200 meters you’ll see a bench where you can do the calculation of the end coordinates.

The formula for the end coordinates is:

N 52.QR.STU – E 04 VW.XYZ

Q = J – (A x G) + B

R = H – (A x K)

S = F - H

T = I – G - E

U = (K x E) – H - B

V = I – H – K – D

W = G – C – E - B

X = G + C – A + B

Y = F – I + A

Z = H – G - B