Spark Sport is disbanding on 30 June, so they are now listing a lot of their content for free, including live stream of the Champions League Final tomorrow (Sunday) morning. Looks like kick off is at 7am NZ time. You'll have to register and signup to sparksport.co.nz but it won't cost you to do so.
I realise this has been hinted at already on another post last week but many of you will be interested to know that it specifically includes the Champions League final. I'm pretty sure it's not easily available on any other platforms, eg it's not on SkyGo.
This is the original Spark Sport post referred to above.