What are good destinations to vacation alone?

I really want to go on vacation this summer, but I have no one to go with but myself. What are some good vacation ideas for young women traveling alone? I was thinking maybe a spa vacation or something. Let me know.

Hawaii !!!! You can hang out on the beach by yourself & people watch while soaking up rays. Go shopping & browse all you want without someone telling you "let’s go", dining might be somewhat lonely, maybe eat in the bar areas of restaurant, so you won’t be the only one dining alone & you can meet people. Go Hawaii !!! Aloha!!!!