Concrete Block
Go to Dead Womans Ditch. At the fork in the road, descent the left road, slowly. After a few hundred metres, look out of a large gap in the left hedge. It has a mossy block of concrete, 3ft sq, in the middle. Descend here.
The Gas Line
Obvious fast rocky open bridleway that descends west toward Dead Womans Ditch. Sharki told me there used to be a gas line along it. It gets wet if it rains.
Gully of doubt
From Dead Womans Ditch CP, cross road and enter the wood at 90 degrees. Scour about for a descent track – after 50 metres it enters a rocky rooty gully line with 3 prominent and doubtful steps.
Chimney
I'm sure there's a description on here somewhere – it's tricky to describe where the start is.
Combes
There are a surprising number of alternative entry points into the combes e.g. it took me ages to locate the entry into Slaughterhouse Combe. And the unlikely alt. into Frog Combe (swoopy west side), the one that collapsed Sharki's lung. It's worth taking the descent, starting west of Triscombe Stone to the Blue Ball Inn car park. Worth starting in Triscombe and exploring the woods to the North West for DH lines, some of which aren't too nasty.
The Qs reward exploring – I'm still finding new stuff some of rather techy. Google Maps (satellite view) is a big help when trying to second guess where trails are.