I had access to the church V.W. bus, I would "borrow" it from time to time as it was parked at my house and go for a joy ride. I had a buddy with me and we were both constantly amazed at that '64 V.W. bus's ability to climb just about anything that would clear the front bumper. One day he said "I wonder how they work in a swamp?" We had a frog pond nearby and I decided it was worth a go, I drove that thing right through the frog pond, the water was just starting to come through the lower portion of the doors. They will float for a short period of time, water comes in through the heater outlets. I never really tried deep water, we were on the edge of the swampy part before the clear water began, maybe two, three feet deep max. Having that air/oil cooled engine over the rear wheels really gave them go in the snow as well, not only that but the early busses had a reduction gear box at each rear wheel which gave them another inch or two of clearance. Baha guys figured that out early on, the reduction didn't help your top end so only the serious "go anywhere" guys were installing it on their buggies.