<human>:  What are the best places to travel in the summer?
<bot>: The best places to travel in the summer may depend on personal preference, but some popular destinations include beaches like Hawaii and Cancun, as well as mountainous areas such as the Swiss and French Alps. Cities like New York City, London, and Paris are also popular vacation spots during the summer, as well as places like Amsterdam, Madrid, and Rome. For adventure travelers, regions like Central and South America can provide exciting destinations such as Costa Rica and Peru. Nature lovers may enjoy exploring the national parks of the United States, like Yellowstone or Yosemite.