I remember doing a similar challenge near Havant a couple of years ago. For that one you only needed to find 100 elements but I ran the GSAK macro and discovered I had 110. So that qualified me for this one too.
Just for completion I ran the GSAK macro again today to see what has changed in two years. Now I have 114 elements.
I'd arranged to pick up my daughter in Lymington at 5pm. I had the time until then to do some caching so I drove down to Dorset with my son, arriving about midday, and we started with this challenge.
We saw a squirrel on the way here. Maybe that distracted us as we started off by spending a minute or two searching on the wrong path. However once we relocated I spotted the cache almost immediately.
Took the stringy man and left a golf ball. Then we looked up and realised we were standing right next to a golf course - I hope nobody thinks we just picked it up from there.