In reply to TobyA:
Please read the post above, there are hazards like that. Extreme caution!
Get a decent description of the route, but to mention it is basically 3 independent sections that can be done separately that the full route links.
The trip into the tunnel from Dali's hole through Hades (trip hazard mentioned) into California, up the "snake", through a tunnel down an ab takes you back to the edge of Dali's hole again and is a loop. Can be bypassed, but where the fun there?
The "secret" entrance from Dali to Tasmania (bottom of Australia) up through Australia, ladders etc, buildings look round old canteen. That can be done separately starting in Dali and walking down the big staircase to go home. So this is a bail out point if needed
Lost world, Mordor, *UP* the slope past the tower (no longer bridge of death and I advise against trying to walk round the side where BoD used to be, too much landslip now very dangerous area), down the incline. That's separate and can start this section by walking up the big slate staircase
Post edited at 09:27