I'm finishing up at top 50 experiences in the world to seek out and explore list. During the research and writing process I've discovered a few variations of "Hawaii" for other countries. In Europe there is a archipelago called the Azores off the coast of Portugal and only a 3.5 hour flight from the east coast 4 hours from London and 2.5 from Spain called the Azores and is known as Europes version of Hawaii. Due to it's location surrounded by water despite being so far north it never experiences drastically cold temperatures.
South Americas version is the Galapagos Islands off the coast of Equador and Africa has Madagascar. In Asia there are many places that would be considered competition to Hawaii.