Dry dock from Plymouth to Singapore?

[finta]

Could someone confirm what this is, please?

My grandad was a marine engineer at HM Dockyard in Plymouth and I was told he accompanied the first (floating?) dry dock to Singapore  before WWII.

Could this be it leaving Plymouth?  Listing a bit to starboard 

Any info would be really helpful  .

[jds1949]

I am no expert, but the white vessel in the background on the extreme right of the photo looks like it has one of those cover-all awnings rigged, which would suggest that this was taken in the tropics.

Another thought - it might be listing - but could it also being positioned - it would, presumably, have to be at least semi submerged in order to get a ship in position to be worked on.

jds1949

[finta]

Oh well spotted jds1949 

I'd assumed    that because it was taken with a different camera than the photos of grandad in Singapore, it would have been taken by someone in Plymouth.  Thanks for pointing that out - it may well have been manoeuvring into position.

finta