This cache is placed near the upper river Hamble. The Hamble is better known as a large estuary famous for yachting and dodgy 1980s TV series but further upstream the river is more intimate and less well known. Near here was sited a mill but all traces have long since gone. This stretch of river now only sees anglers fishing for the trout and grayling living here.
You are looking for a small cylindrical container with room for a few small swappable and trackables.
Congratulations Issi Noho on the FTF