Took me a while but have found how to dis-engage the Traction Control on the 2013 Collies etc.
This is done prior to driving on the beach.
While stationary and engine running.... press and hold the Traction Control button . A notifaction in the dash will will tell you when it is off... keep pressing ( Do not remove finger from button ) .... and then another icon on the dash will say ESP off. Bingo !!!!!!!!!!!!!!!!!![]()
The Traction Control will re-set to default everytime the car is switched off.
Seriously, this is the best thing to do for beach driving, particularly in soft sand.
Cheers LP