Might want to hop over to the local library and see if you can find a copy of a girl scout handbook (or a boy scout handbook) to brainstorm activities.
Activities that girls might like more than firestarting, fishing or skipping stones on a campout:
-Cooking (stereotypical, but hey, what can you do)
-Anything involving braiding your wifes hair or gimp/lanyard
-Art projects
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Singing songs, playing instruments, telling campfire stories
-Gathering and observation activities (bird and animal watching, leaf collecting, berry picking, cataloging plants or insects if your daughter doesn't have an ick factor at work, treasure hunt)
-Performing basic science / engineering experiments like measuring rainfall, categorizing clouds, collecting rocks, doing lashings, making a raft.
-Almost any game
requiring cooperation and communication
-Make up a family camping ritual or ceremonies
-star-gazing with a star chart