If you can do with playing some less well regarded courses, you could do a lot worse than head to Sweden. The Train system is very good and surprisingly reasonable when compared to the UK. I think you can get Stockholm-Copenhagen for less than £20 each way. Come up to Stockholm (one of the most beautiful cities in Europe) during June or July, and you find that many clubs have reduced green fees. Take the boat to Helsinki for next-to-nothing and sample some golf there.
Taxis are criminally expensive in Scandinavia, so I'd forget about them, but grabbing buses, city-trains, metro, trams is usually not so bad as they same ticket is valid on all modes of transport.
We have members of the GCA.com DG in Denmark, Sweden, Finland, Iceland, and Norway. Let me know if you're heading this way.