Alexa Chung, Poppy Delevingne

Expeditions and adventures are almost half the reason we get so excited about summer. No matter where the road (or your plane ticket) takes you, though, you want to get there in style. The challenge is deciding how to plan the perfect daytime and nighttime outfits for your final destination. But relax, you don't have to think too hard about that – we've already done it! Click through for all the best vacation outfits, whether the sun is out or the moon is shining.

[Photo by Stefano Galuzzi via @art8amby]