The mechanism to participate is simple. They have created an application in Facebook which consists of a video adventure called The Maltese short Where users, whether or not they are friends on Facebook, can win a trip to the heart of the Mediterranean. This is a series of videos linked to each other and located in Malta in which at the end of each one, the player must choose which path to follow in order to advance in the story. When you reach the end, you have to answer some questions to enter the raffle.
You have to enter the link to the Facebook application And try your luck. And if you win the trip I recommend you read David's articles on malt, its beaches and favorite places.