Although there are many campgrounds in an hour distance from Lisbon, there is only one located in the city called Lisboa Camping, located in Monsanto. All the others aren't practical for the traveler without some form of self-transportation.
Parque Monsanto Florestal Monsanto offers a very pleasant campsite with a full compliment of modern facilities. Services include; bar, basketball, mini-golf, laundry, restaurant, tennis court, supermarket, swimming pool and a t.v lounge. Reachable by the bus 43 from Rossio.