The pictures are from the 2 yearly contest, where pilots from Mallorca and abroad are showing their planes and skills. The small air strip is near Alguida, not far from Palma de Mallorca. Very picturesque surroundings. There is mainly activity here during the week ends. This must be a very exiting hobby to be engaged in, but just looking is fun also.
The following links explain more about the activity, and you can also find a map, how to get to the " air field".