This event is over.
This Wednesday is Towel Day (https://en.wikipedia.org/wiki/Towel_Day) an event that is very close to the spirit of couchsurfing...
...as if we needed an excuse to have a couple of beers down in the grass in Retiro park. Regardless on whether you've read the book or even heard of it, you can join and bring your favorite junk food and/or drink to spend a careless May evening. Some 'litronas' will be provided. Towels are optional.
Meeting point at the park entrance facing Puerta de Alcala.
See you there!