This area is known as the Ochre Hole and is part of the original London to Scotland road which passenger coaches used to use to reach the North. The stream is called Alison Dyke and it comes from a spring located on the private land to the west, belonging to Huddersfield Golf Club, it winds it way down, mainly through culverts and eventually ends up in the Huddersfield Broad Canal.
The parapet above the waterfall is grade 2 listed and dates back to the 18th century.
The huge Beech tree is known to me as Auntie Molly's tree, she carved her initials into the tree in the 1910s as MT for Molly Thewlis and they can still be see on the stream side of the tree now almost 3m above the ground.
You are looking for a small camo clip lock box, please rehide well and be careful of the steep drop!