In reply to steve taylor:
Popped back onto the island again today as promised. Apologies for the long post.
Photos being uploaded currently, will add links when available.
Ventured from the Veranda, under the block slab along the edge of the slump, over the muddy bit and down to the new 'beach' by the Fallen Slab - escaped (with my life) up the Blacknor South gully in driving rain and pouring mud.
You can now get a sense of the geology and human history here. It seems the Block Slab is part of a long line of crag that came away a long long time ago - this extends under Battleship Edge and ends at the northern end of BFS. The landslide has moved a lot of it, but it's really clear how the quarry debris covered this over the years. It's this old crag that's holding up the mud at Battleship and is keeping the path under BFS alive.
It's also clear that a lot of the quarry spoil was chert as it's everywhere now - lots of sharp and brittle rock everywhere.
Summary note : Descent via old Battleship and BFS routes will never be possible without abseil. Battleship will need to be approached via southern descent (rope in place for muddy days) and usual gullies. BFS may also be safer being approached from this direction too as the landslide is actually pretty flat.
In essence, the damage can be classified into three areas:
- Battleship (Damaged but usable. Suggest could be prone to further slips)
Block Slab
Lots of cracks and possible movement just south of the block slab - crack opening at the base of Pyschic EMF, doesn't look dodgy though.
The slab itself doesnt' seem to have moved and a good inspection of the land below it shows it seems to be okay.
However, the big boulders on the edge of the grassy promontory below the south end of the block have slipped onto the beach. Lots of damage at sea level. Local boulderers should be able to spot the problems.
Main Cliff
Lots of slippage around the Arc Of A Fridge area, but ground below should hold fine. The 'dead crag' is holding the path up to Battleship and the ground under the Edge up and doesn't look like it will slip at all.
At sea level some of the major boulders have come away from the grass and fallen onto the beach. Some really dodgy ground here.
Battleship Edge
Again, the 'dead crag' is still holding up the ground below the Edge and once dry should be fine.
It's been smashed a bit at the northern end and the rock below it (old flinty edge sticking out of the brambles) has been smashed too.
Once the slip underneath Never Drive A Car has dried it should be fine for an approach and for belaying etc. The actual routes haven't been extended by too much, probably a belay bolt and a proper first bolt will sort them (and some serious cleaning!).
Suggest a new path to these routes can be cut from the Keyboard Wall ledge. Descent will need to be from Battleship south approach though.
Bouldering underneath the edge has again taken a battering by both landslips and the sea. Lowest boulders have been cleaned by the sea but the 'rampart' boulders have slipped and a lot of cherty material has been smashed around them.
- Blacknor Far South (probably best avoiding for a while, scene of major landslide)
Landslip area
The new crag uncovered is running with water and there is a waterfall coming out of a hole in the middle of the crag. Points to a probable cause?
This is probably the safest area though - the old descent mounds are still intact, grassy and solid. Movement around here is easy and when dry this should be safe.
Blood And Chocolate area
No routes damaged at all and all possibly accessible. As Neal points out though, while they can be accessed, the 'dead crag' is holding up a lot of very steep mud, a lot steeper than at Battleship. This could feasibly slip again.
Mechanoids area
No route damage and should be accessible from Battlehsip via kicked steps in dry mud. Path beneath has slipped about 5ft.
Fears Younger Brother to Great Barrier Reef area
Path slipped about 6ft as per Neal's update and photos. Accessible via Mechanoids area BUT is directly over a dodgy part of the 'dead crag' with a lot of mud and lots of water in the mud.
Suggest all climbs north of Mechanoids could be susceptible to more slides and complete inaccessibility if anything moves again.
Where's My Washboard area
This is really messy and there's now a graveyard of flowstone down near the beach (bagged myself a nice piece of tufa as a momento of how bad my footwork was). Shows how the flowstone formed behind a crag which was eventually prised off.
There's now a deep gully below these routes with some huge new boulder exposed and smashed. This is where access gets dodgy. Suggest only via Neal's rope from Blacknor South.
Boulder beach is covered in the landslide with some major 'rampart' boulders pushed onto the beach. Didn't get much of a look on the beach itself as the rain was coming in.
- Blacknor South
Black Pig and trad routes area
Lots of slippage here and still really steep mud and scree. Access via Neal's rope, but this is the area that could be prone to more movement. All of the rock and mud is full of chert spoil which formed grassy mound just before the 'shade tree' at BFS. Most of this is missing and movement between Blacknor South and Far South is difficult no matter which height you approach from. IF the area settles then of course pathways could be established. I do worry about how much mud is still held by very little in the way of boulder support though.
Medusa Falls / Cute Ass areas.
As per Neal's update, dropped about 6ft and again, lots of muddy crap around the base of the crags. This is probably the biggest risk - the sea has washed a way a lot of the mud that's slipped down and left no support for the mud above.
Fallen Slab / Sharbutts.
Fallen slab descent has slipped but is still passable.
Land under Jutland has moved again, now about 6ft up to routes and some worrying looking cracks in the mound that leads up to the descent gully.
I'd put money on this whole area going if we have another winter like that.
Will post links to photos when they're available and will host as much as I can externally (panos and videos).
Post edited at 14:10