By Nacho Doce and David Latona

SANT ANTONI DE PORTMANY, Spain (Reuters) -It's another night, another party at a hotel in Ibiza. The international clientele dances to the house beat while laser lights reflect on the curvy swimming pool and on a sea of sunglasses worn after dark at the open-air venue.

Many party-goers wear all-white; some show signs of altered perception. Ask those queuing outside this place and some of the Spanish Mediterranean island's legendary nightclubs and they'll say they're spending a lot but the experience is worth it.

However, behind Ibiza's clubbing scene and beaches a housing crisis has forced many locals and seasonal workers to share cramped apartments, commute from off the island or stay in tents and motorhomes in unauthorised encampments.

Ibiza's problems

See Full Page