Sa Talaiassa is on an island.
Ibiza . It is the third largest of the Balearic Islands , an autonomous community of Spain . Sa Talaiassa ( [ sə təɫəˈjasə ] ) , also known as Sa Talaia or Sa Talaia de Sant Josep , is the highest mountain in the island of Ibiza in the Balearic Islands of Spain . Sant Josep de sa Talaia , the island 's largest municipality , is named after this mountain .