My favourite part of just wandering around is seeing that certain thing that makes you stop what you're doing and think "huh?" Then you get to make up all the crazy stories to go with it.
I saw these tree roots and had this massive urge to sit down and start playing with toys in all the crevices. I've learnt my lesson now. Always keep my matchbox cars in my handbag. And it's totally ok to be 28 and sit in someone's front yard playing.