Become a Fellow, its not the insular system it once was and you would be making a tangible contribution to the ZSL..you can then bypass the heaving masses.Car parking is free in the week and easily found for free at weekends [when Fellows pay too]in the streets to the north of the zoo.Incidentally at the AGM two years ago the Society claimed that it could not provide an adequate visitor experience if attendances where much higher than they are now with the current infrastructure of facilities-it would seem that the lengthy queues prove this.