To reach the cache you need to drive into the Village of Lode, and park at the parking coords near the Church on the high street. Please don't be tempted to park at the mill, or on Mill Road, as this is residential parking only, as you may be fined.

Lode Mill was built around 1745, and was used to grind corn until 1900, when it was converted to grind cement dug from the nearby quarry (which is just the other side of the river from the cache) for the Bottisham Lode Cement and Brick Company until the company went under in 1920.
In 1934 the Broughton family purchased the Mill, which lies at the end of the Anglesey Abbey estate which they had already purchased in 1926.
The Mill lay idle until 1978 when my father led the Cambridgeshire Wind and Watermill society in restoring it to full working condition.
In April 1982 the Mill ground corn again for the first time in over 82 years, and has continued to do so for the visitors to the National Trust property on at least one weekend per month ever since.
I spent most of the weekends of my childhood helping to run the Mill, and running around the grounds of the Abbey.
If you wish to enter the National Trust property, you will need to take the main entrance off Quy Road before you enter the village.
The cache itself is a short walk away along the river, about halfway between the mill and the bend in the river, away from the river bank.
There will be muggles by the bucket load passing by on the other side of the river (depending on the time of day), but the cache is now located in a spot where you shouldn't be observed so easily.
This cache forms part of a circular walk taking in 4 caches:
Update Easter 2019
The cache has been relocated by about 5m away from the coords to a different tree (check the hint to help find the correct one), due to birds nesting on top of the old hiding spot. The new cache is a tube with a red top.