Well, perhaps not famous, but having a good deal of money, certainly. I've seen this boat parked just off the beach at Clifton a few times. On this particular afternoon I watched for several minutes as a rubber dinghy towed a rather unsteady skier backwards and forwards. The beach is relatively well sheltered from the wind, so I guess it makes a pretty good place to learn to ski.
I remember that I tried skiing once many years ago. I did reasonably well until I ended up with a ski on either side of the boat's wake. I quickly had to make a decision - either let go of the ski rope or learn the splits in a hurry. I still can't do the splits. ;)