Here goes to add my latest contribution to this series - I must have too much time on my hands!
The given co-ordinates just indicate a place to park from which you can have an enjoyable walk to the cache in a very appropriate area for one of the elements although you can park much closer if you wish.
One word (A) connects the following: (B): a waterfall in Canada that is higher than Niagara; (C): an ancient French family; (D): a fruit often used in baking; (E): a fictional dog. The numbers you need are: (A): the number of letters in the word; (B): the height in meters according to the local tourist office - NOT Wikipedia; (C): the number of alerions on the blazon; (D): the number of letters in the common name (two words); (E): the number of letters in the second name of the author. F is the total of A to E. The cache is hidden at N 54 59.(3A+2B+4C+3D+3E) W 002 08.(F+C-2).