This cache will take you to 4 locations including the final. You can find parking along the road at the posted coords. Please note that there is a 5 hour parking limit on roads in Halton Hills. If you plan on parking for longer, I suggest you start your adventure further upstream at Glen Williams park where there is a large parking lot.
A = According to the plaque at the posted coords, about how far downstream are the stone ruins of the Dynamo?
To get to the Dynamo ruins project a bearing of 111 degrees north at a distance of 1.3km
B = How far down stream is the Dynamo actually along the river from the River Drive bridge? Round off to the nearest whole number. You can float on the river using a tube or walk down the river to the Dynamo or even walk along the Credit Valley Footpath to the Dynamo if you wish and measure the distance that way using your GPS.
C = How far in a straight line is the Dynamo from the River Drive bridge? Round off to the nearest whole number.
Of note, I had one of my photos of the Dynamo ruins published in a book. Once at the Dynamo, project a bearing of 274 degrees north at a distance of [C][C][B-B] meters (this is a 3 digit number). Yes you have to cross the river. You can wade, it's less than knee deep.
D = How many round concrete sections are there as you enter? (it's an even number incase I miscounted)
E = How many rungs on the lower section are there?
F = How many rungs on the upper section are there?
Cache is at:
N43 [A][A+B+D].[D+E+F][A]
W79 5A.[A+D][E*B-B-C]
Please note that Stage 3 can by physically difficult and even dangerous so please take caution and be careful. Snow White's dwarfs would have a hard time here even though they would feel right at home in this environment.