Look at the video at the 2:11 mark. A damn scooter towing a 'boat' which must weigh like half a ton at least 500 kilos. Look at the boat size. Now that's some great physics involved to have a 'scooter' with an 'engine' it's size being able to 'carry that payload 500 kilos'. AHHHHHHH now let's talk what sort of physics is involved. Mind you my knowledge of the field isn't beyond high school since I didn't seek to 'specialize in it' further. But I can see the crazyness involved.
A camel can't even carry such payload. Mechanics involved is amazing because it's clearly some other mechanics involved beyond 'weight vs weight'