We've got an amazing opportunity to go on holiday for 2 weeks this summer, but cannot decide where to go (this would be a one-in-a-lifetime type holiday). We want to go long-haul somewhere with a bit of culture (so probably a city) followed by somewhere we can relax. We like quite a bit of activity (none of us are die-hard sunbathers) and it would be me, DH and DS (age 9). We've considered Thailand (rainy in July/Aug) and Japan (possibly one for when DS is older). We don't want to go to the US as have already been a fair bit for work. But other than that we're up for travelling pretty much anywhere. Anyone have any suggestions?