You plan to go to the Plone conference: congrats! that's a great event
You do not want to go by plane because it ruins our planet: congrats! that's a great planet
But when looking for train connections to Eibar, you get nothing: don't worry! You can actually go to Hendaye (french basque side of the frontier) and walk through the frontier from Hendaye's station to Irun's station (spanish basque side of the frontier), it is just a 30 minutes walk!