At three years old, Faith already knows most of her letters, letter sounds, and numbers 1-10. She knows all her shapes and colors. And this is purely from her picking up on what Gabriel is talking about from school, what she picks up from educational TV shows, and what I read to her. (I somewhat regularly play Starfall with her, or do a couple of little dollar-section-at-Target Pre-K workbooks.) She learns new things incredibly quickly, and once she learns the word for something, it sticks.
There is a little pond next to our YMCA, and after we go to the gym, we often go feed the turtles (in the summer) and the resident flock of Canadian geese (in the winter). I feel like I always have the ends of bread loaves and stale Cheerios stored in my diaper bag for impromptu trips to the pond. The kids love it. There is a big bridge over the pond that is great for watching dozens and dozens of turtles or geese flock underneath you. I have us up on that bridge when we feed the geese usually, since they are about the same size as my children and can be mean.:)