I remember when I was a kid, and from movies, books, etc. Hawaii looked like a heaven on earth.
Oh yes, it definitely does - even being an adult :-)
I'm not sure if there are direct flights from Croatia to Canary Islands, but according to the geographical distance it would supposedly be a ~4 hours flight.
I doubt there are direct flights from Croatia, but if I'd go, I'd go to Spain and then to Canary Islands.
I went from Spain to Croatia with plane... I don't quite remember the time it took me to get there, but it was less than 1 hour for sure.