Where ever your staying should be able to supply you the TM30 if they registered you as staying there

@Joseph ******

yes with visa its much better than visa exempt

Tourist visa is 60 days plus can extend for another 30 days.

Trying to live and do border runs or flights in and out can eventually catch the attention of an Immigration officer and you get stopped and question. No one can really say how long you can get away with doing it, some get stopped much quicker than others, some dont get stopped like me i flew in and out every 2 weeks on visa exempt for years but i always had return tickets which could be why I wasn’t stopped

@Peter ********

I agree I would not bother, unless doing an extension which said only coming 2 weeks so not needed.

Are you the owner ? If you are then register online and you can then do your friends TM30 online

Depends where you are. Some places you can go now some are week or more before the 30 days expire

@James *********

Agree, Never offer information only answer direct questions

@Wells *****

I have a long term visa now but previously came every 2 weeks visa exempt from Australia never got stopped but always had return flight booked.

There is no law stating how many air entries one can do. Have a exit fwd flight booked to show them if they ask

Only 2 by air thats nothing. Jump on a plane and head over

As Jess said, Immigration may stop and question you if they think your trying to live here on extensions and exempt entries .

They may also take no notice, the risk is yours but a visa is a better option