1. They often go to the beach .
2. They stay there for two or three days.
3. They usually stay in a small house or a flat by the sea, but sometimes they stay in a hotel.
4. Last summer they went to Nha Trang.
5. In the morning, Lan and her mother walked along the beach and built sandcastles.
6. They visited Tri Nguyen Aquarium and saw different kinds of fish there.