Vacations are a perfect time to read together. Remember to explore types of books you haven't tried before. Sometimes re-read the same books. Often there are new discoveries with each reading. Don't forget to look closely at the art of picture books.
Illustrators are storytellers, too.
Investigate local libraries. Plus there are many, many other wonderful books. Early Readers There are many excellent individual books, as well as series. Junior Fiction The Borrowers and The Half Magic series are good summer reading. Alvin Schwartz, Bruce Colville, and Allan Aalberg write good scary ghost stories, but I don't recommend them for bedtime.