Have a look at their web site here:
http://www.jmf.pt/
Its a bit of a dogs breakfast!!!
Log in with your age
Select english
Select contacts on the drop down menu
Select How to find us
You will find a range of options including public transport.
If this is too difficult email them at mailto:info@jmf.pt.
The reason I say too difficult is that this is one of those Web 2.0 all singing all dancing flash up market websites which appears to have been designed to be as un user friendly as possible.
