A real must do, and if you don't have access to transport, use the bus, a taxi, a bike or walk - it is that good. Dusk is my favourite time, and we generally get out there for one of the qualifying sessions, plus once during the race, normally on the Saturday evening. Last year's qualifying in the wet was simply awesome as they braked into Arnage, a ton or so of water fell off the cars as the aerodynamic effects faded, and then the difficulty of getting the power down accelerating out of Arnage gave a good insight into who were the good drivers, cars and the also-rans. A magic piece of Le Mans, even since they increased the Indianapolis run off a few years ago and put up fencing so that you can't see the cars from as far out from Indianpolis as you used to be able to.
MG Mark