Take the train to Alverca.
When i went to alverca i came by bicycle, but i think most people will not be doing that if they go to alverca.
You can easily take the train though as you have regional traisn from Lisbon to alverca several times a day.
The train station in Alverca is located in the center of town and from there you should able to walk to most places you might wanna see in Alverca.
Should you be coming for a football game then the football stadion is just 5 minutes walk from the train station.Related to: