The local club is Esperança de Lagos.
Website (in Portuguese) here: http://www.esperancadelagos.pt/
The stadium is situated on the entrance to Lagos from Portimão, not far from Macdonalds. Unfortunately, the website does not easily a show of next fixtures.
Portimense would probably be a better bet as they are in the Premier Division this season.
Their website is here:
http://www.portimonense.pt/
However, I think they are playing all their matches for the first part of this season at the Estadio do Algarve near Faro as their own stadium is being upgraded.
You would need a car to get there.
League Fixtures are here:
http://bit.ly/a00wUo
