My first ever lucid dream that was notable was years ago. I was walking home. It wasn't actually where I lived, but in the dream it was. I was faced with a vast field and all I saw was this daunting scenery with a winding path, fields, hedges and trees. I thought, this is going to take ages to get home. It was a wearying thought, and then it was like a light going off in my head, hang on, I'm dreaming this, I can fly! So I did a run and a jump and away I went, but I flew too far and landed in the next town and had to get a taxi back! It was quite amusing, and felt really nice.
I fly regularly now and can take off and land at whim, and am no longer scared when I'm teetering on the edge of mountainsides.

Thanks for sharing this dream. Amongst reading others' and writing about my own depressing and often terrifying dreams, this really gave me a unique perspective on the kind of dreams one can have.