My son, almost 4 has always been curious. So one of the things I did with him was. In the yard or somewhere hide good luck
Bob

All of my post didn't go through.
What was left out was hide little thing that you don't care if someoneelse finds them. Then draw a simple treasure map and take them treasure hunting.

how about going for a walk and pretending you are in a jungle or a magical forest and make believe you are finding treasure.

Another idea would be going outside and finding nice leaves and then bringing them inside and doing an arts and craft with it.

Since it is Halloween season, see if there are any apple picking or pumpkin picking places near you. Little kids love to pick gourds and pumpkins and taking them home. Then once you get home you could carve it or pick up paint and stickers and decorate it.

Just a thought.

Also how about like Barnes and Noble or a local library? Sometimes actually going to these places inspire us to actually sit down and read with them. Plus at Barnes and Noble there is a great section for kids and usually there is a train set or a stage they can play on and meet some other kids.

i love taking my toddlers through the woods..we have quite a few hidden creeks and things, here in Tennessee, and these types of activities always tire my kids out well... the animal shelter is always fun as well..... and like the rest said...THE LIBRARY...my kids live for it! :)

I collect and save little objects (party favors, gumball machine toys, etc.) and then I "drop" them along the bushes, sidewalk, etc. and then I take the kids out for "treasure hunt." They love it. We also play neighborhood bingo. I print my own "play cards" with images that you can download from google: mailbox, car, stroller, tree, stop sign, etc. and then we try to get three or four in a row (like bingo)... they love this game too!

Also, we set up "Dora the Explorers" type of adventures in the back yard... and they go through the tunnel, up the stairs, over the rock, etc.

Also, you can visit your local museums. I'm always amazed at how much the kids enjoy all types of museums.

Have Fun!

My son is almost 4 - he loves the book store - they have a childrens section with a train set. Most of the larger chain stores have lovely childrens sections. He also loves pet stores.

bookstores, nature walks, duck ponds, rock collecting, bug searches, sidewalk chalk, bubbles, picture taking, mud pies (yes I love when they make these) fort building (sheets for a tent) dress up clothes for make believe.

Seriously I don't think I ever grew up. I think sometimes my kids want to kick me out of their play. However last weekend I got to be queen mommy and they had to build me the biggest fort ever!
We also run around the back yard pegging each other with those squishy balls.
Use your imagination what was absolutely fun to you.