I am unsure what this is. Is it a Livistona sp. - either the native or the chinensis variety? If it is the native, it does grow in an area that is typically wet - i.e. near a big puddle with frogs. But it would be out of its typical range (near the coast).
Thanks guys. I put this on because initially I thought it was an introduced species - but then had some second thoughts. It seems that you think it is likely exotic, too. If that is the case, I will remove in the next couple of days. Thanks and cheers Christian.