Does anyone have an idea what this was about?
 
 
Received this from "Baz" Ford (Ex 237 Signal Squadron (ComCan) which may explain things: Been there, done that on an MPC 1 at 18 Signal Regiment. One of the excercises was on an island off Singapore (It used to be a prison at one time). Climbing from a boat, up a cliff and onto the island. You had to climb up unaided, the ropes were there ‘just in case’. At least that's what it looks like.