Me Grande Arche de La Defense, then bus 258, or RER to rueil-Malmaison, and then walk.
Besides walking after taking the RER to rueil-Malmaison or bus 258, you can also jog to your destination.
mnli hypothesis: Besides walking after taking the RER to rueil-Malmaison or bus 258, you can also jog to your destination. premise: Me Grande Arche de La Defense, then bus 258, or RER to rueil-Malmaison, and then walk.