Aside from Ibiza's famous nightlife, for details of which, it is best to visit a website dedicated to the subject in order to keep up to date, the island is also well known for its excellent beaches, in particular those around San Antonio in the west of the island such as Cala Salada.
There are also plenty of activities that are great for a family day out including water parks such as Aguamar at Playa d'en Bossa, or the go-karting centre at San Antonio, as well as several road trains that operate tours through the most scenic areas of the island.