Make sure to complete your registration as early as possible to avoid the queues that will start forming on the morning of November 7. With pre-registration, you can register at Lisbon airport or at the venue before Web Summit starts. Opening night on the 6th of November starts 18:30. Better arrive a bit earlier.

There's a great Chinese restaurant right next to the Arena. You may want to visit it before the event, or right after. It is open till late.