If your staying at Mt Hart for the night I'd highly recomend taking a couple of hours and flying NW to the Horizontal Waterfalls and Koolan And Cockatoo Island. Taffy generally has drums of fuel there so you may even be able to bypass Derby and fly around the coast from Mt Hart to Cape Leveque. Have a look at either the King Leo or Broome Aviation website to see where they go. Most of their stops are great places to go. Windjanna George for instance would be a great place to camp and it's only a short walk from the airstrip.
Have fun
