Overflying the island of Porto Santo enroute to the Canary Islands.

PXO/LPPS is the usual 1st alternate airport for Funchal, Madeira. It is, however, a very small airport with limited parking on the apron so it is very common to fill up quickly when FNC is below minima. It might be wise to plan for this and carry enough fuel to be able to divert to one of the Canary Island airports.