Walk along the Thames Path along Hartington Road towards the lock at Chiswick Quay. This lock is where the boats enter the small marina at Chiswick Quay. The cache is not hidden on the lock or any of the boats but to the side of it.
Fgnaq ol gur envyvatf naq nqzver gur ivrj bs gur Gunzrf naq Xrj Oevqtr.