You may contact the initiators, Wouter and Jan Dirk via email: info [at]
But you may also catch them with a Facebook PM.

Please note that a passe-partout is not available, since all milongas and workshops are organised by each individual host.
You don’t need any reservation either.
If you want, you can contact each of the organisers directly. On the list of milongas you will find webaddresses and telephonenumbers of each.
You can also check each facebookevent for more details.

And you may contact others and ask for (and offer) rides, couches, and what have you at the Facebook TangoTrain Group