The island's only accommodation is managed by the national park office in Sant Jordi's Centro de Visitantes Ses Salines, this refugi consists of 12 double en-suite rooms in an old military building. There's only a microwave and fridge (no cooking is allowed on the island), and you need to either bring sheets and pillowcases, or rent them there. Advanced booking is mandatory; two night minimum stay.
Cabrera National Park Refuge
Southern Mallorca