No Nuts Here !! Traditional Cache

You are looking for disguised nano cache, near the Duke of Northumberland's River.

This section of the river was constructed during the reign of King Henry VIII to augment the flow supplying existing mills and to supply new mills, a source of revenue for the Duke of Northumberland's estate and which would have the corollary benefit of irrigation for his tenants' fields. 

The Dukes and their Somerset-styled forebears were Lords of the Manor of Isleworth (1547–1554 and 1594-1925) and Twickenham (1538–1541), retaining much of the dwindling agricultural land until the 20th century. The family cemented its foothold in Isleworth by acquiring a former grandiose monastery by the Thames there which had become Syon  House, in 1594 and rebuilding the same, which remains the southern English home of the family.