In our town the library does a story book walk where they have signs along a walking path with the pages from a kids book on them. My kids love going to the park that has the path because they get to read a story by racing to each page.

We also have a book bus that brings books to a different park for an hour each day during the summer. The library sets out baskets of books, signs kids up for library cards, and gives out simple literacy activity worksheets. They also bring some simple outdoor games like giant connect 4 and chalk. They do mornings some days and afternoons other days to reach different families/kids.

These might be other fun things your library can do in your community.