I went to a fantastic Montessori school in India and I remember we'd go on nature walks every day. I'm considering the idea of home schooling Maya, at least until she's 8 or 9, and I'm trying to create a daily routine for her. I loved nature walks as a child. I loved being outside listening to every last sound and at the end talking about what we discovered.
She'll learn so much just from being silent and witnessing everything (although presently, Maya has way too much to babble about to stay silent for too long).