Japan
Some fabulous beaches on the south islands, will be quieter after the August crowds. Some excellent places to stay as well with private onsens and some very nice Ryokans all over.
Nightlife in the larger citys can be such good fun, lots of good bars in hotels, and dont forget Karaoke but with a private room with food drinks served (last one we had had velvet seating a huge chandelier and fabulous food) not all Karaoke bars are equal! Along with the small palaces that only have seating for maybe 6 people, rustic...
Food, well everything from Michelin stared restaurants (Japan has the highest after France) to everything in-between great seafood as well.
Shopping, culture, scenery, temples, and an excellent and easy to use train system to get around (local and national). You can buy an unlimited pass to use the trains as well, I would suggest the 1st class green car! But this has to be bought outside Japan and only by foreign passport holders.
We have also hired a car up in Hokkaido (cold coming in in September) and everything was fine.
Japan offers so much to see and do, I lived there for a while and really miss it.