Secluded cave near Lagoa Algarve Portugal [Portugal is has it all. great food and wine sights natural spots (like this one) friendly people. and you can get away with your high school Spanish if you need to.
Na Pali coast, Kauai, Hawaii. We only went to this one island and spent three wonderful weeks there. Rented a car and did the whole island. It was unforgettable and by the time we left we felt like two of the locals.