Hehe, RK, let's not forget that 95% of the vehicles going there are 2WD!Mathr saab, I guess he might be expecting extensive use of 4WD there, so why not a ready guide from your side on all aspects
When it comes to clearly visible slush/mud/sandy conditions it is easy to figure out that 4WD needs to be engaged. I have always engaged it on the fly before entering such patches.
And I always use 4WD for water crossings, to crawl through them, thereby ensuring that nothing on the underside takes a bad hit.
I mentioned the dis-engage bit just to alert people that 'forgetting' to do so on twisties, on hard tarmac, can cause extensive damage to the transmission.