@ThomasNotTom There are 3 indoor enclosures, fairly small but tall, and understandably so with the warmer climate of Spain.
These first two photos are the indoor enclosures for the pair from Monkey World (which also have the indoor enclosure as seen above), although at night the orangutans only have access to one, with the Lar gibbons having the other as their night quarters.
Then also an indoor enclosure for the single male (ex-London, Paignton and Fuengirola) who shares the outdoor with the Lar gibbon group, I've included a photo of the lone male and gibbons island too