Ответ:

The girl liked her summer holidays because:

  • It was really wonderful to travel together with her best friend, Kate.
  • They visited a lot of small Russian towns and some big cities.
  • They met a lot of interesting people.
  • The sea was wonderful, blue in the morning and dark-green in the afternoon.
  • The weather was sunny and hot.
  • They lived in a tent and had a good time, played volleyball, read books, and helped Kate's mother to cook.