I would never consider getting on a train in Northern Ireland, but the trains in Perth were great. I loved being able to hop on a train, and 20 minutes later I was at the beach. Plus I felt remarkably safe on them.

I'm not sure what it's like in Melbourne, but if you get a chance to try the diving or snorkelling I'd do that. I did off the East coast and it was amazing; I would've done it off the West coast as well but I didn't get my act in gear in time.