There are two airports where you can travel: Francisco Sá Carneiro Airport, in Porto and Lisbon airport. You can travel by underground between these airports and the Campanhã railway station (in the case of Porto) and Oriente (case of Lisbon).
There are trains that serve Aveiro station. Consult schedules and prices in CP.
After you have buses every hour to Costa Nova.
x = 8º 45′ 0″ W
y = 40º 36′ 41″ N
The Costa Nova Hotel has a private covered car park.