Jon Crane says he wouldn't walk the route himself as it becomes a "mud bath" during wet weather.
Al Pinkerton says drivers have reported dangerous lane changes and ongoing congestion after changes.
Steve Backshall, from Bagshot, says his parents were very influential in pushing him towards nature.
The Bracklesham holiday park is still closed for two years since it flooded.
The M3 was closed at the Bagshot interchange after two HGVs collided but has reopened.
Dog walkers in Horsell Common and Thames Basin Heaths are warned about the impact on breeding birds.
The M3 northbound was closed for several hours but it has since reopened, police say.
Keir Starmer has supported the case of Chris Dennis, from Bagshot, who was court martialled in 1966.
