The general response is apparently quite clear and does not give room for much surprise: people in summer prefer the beach before the mountain by 75%.
Among the most sought after beaches are those of Valencia that occupy 30% of the talks in social networks and blogs of the space in which people take care to talk about the beach.
Behind Valencia are the beaches of Andalusia, the Canary Islands and Galicia in this order.
As for the destinations away from the beach, the most sought after are Madrid, Aragón and La Rioja.
You can find more information on the official link.
Official Site | Noteca