That'd be fantastic mate, I go to the beach regularly (despite the "fantastic" Sydney winters). Have you tried it out on your car yet?
Oh yeah. Before I paid for it. Guy came out to my car with me and tried it himself.
No worries.
Not sure where you are in Sydney but Parramatta Locksmiths (at North Parra) were always able to help me in the past (worked in Sydney for 14 years).
The key has a number on it - "TOY40P"
If that doesn't help, let me know and I'll go ask the guy how to identify the blank. He's at Currimundi on the Sunshine Coast.
And SRT Metro, see how you go with the number above.
It is a Toyota key.
A bit more info. The first guy I went to identified a Toyota blank but was unwilling to try it because it didn't have the little bevels along the four outer edges of the key, like the i30 does.
It seems they don't have any effect - at least in the door lock.
BTW. I just tried it in the ignition. It will turn on the accessories (radio etc). Which my previous cars would do, also.
I wouldn't try to start the car as you can scramble the ECU. And it won't start anyway.