RER
The RER (the commuter light rail system) runs directly into Paris, and you can use the same ticket to transfer to the Paris Metro or another RER line. It's very inexpensive (about 8.10 euros, I think).
The RER (the commuter light rail system) runs directly into Paris, and you can use the same ticket to transfer to the Paris Metro or another RER line. It's very inexpensive (about 8.10 euros, I think).
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