For a map on how to get to Eugi please visit:
Google Maps

For information about buses going from Pamplona to Eugi, please visit:
http://www.autobusesdenavarra.com/siv/internet/busquedas.jsp

Nearest Airports

The two nearest airports to Pamplona are Bilbao and Zaragoza. Madrid (Barajas) is further away but has a good rail connection.

Bilbao (Easyjet, Iberia, BA etc)
There are buses running from Bilbao to Pamplona
http://www.autobuseslaunion.com

Zaragoza (Ryanair)
There are trains from Zaragoza to Pamplona:
http://www.renfe.es

There are also regular buses:
http://www.conda.es

Madrid
There are trains from Madrid (Atocha station)
http://www.renfe.es

There are also flights from Madrid (Barajas) to Pamplona airport (Noain).