This year our Society has been invited to host the competition at the Gibraltar Exhibition of Modern Arts (G.E.M.A.)
This site should show you more about the venue: http://www.culture.gi/art-gallery/gema The below should help you locate it. But it is over a kilometer in distance, a Taxi is recommendable. You veer slightly right at the SECOND roundabout and go up and through an Old Metal Bridge. It is the road above Casemates Square.

Obviously provided by Google Earth ©
To people wishing to visit Gibraltar (GIB) the following two site shows what GIB has to offer
For the even more adventurous of you, you can try the new* Windsor hanging bridge at http://www.visitgibraltar.gi/see-and-do/adventure/windsor-suspension-bridge-13