The trip started when the young smart-phone owners used the Navigator Deluxe app to find a state park.
Then, using the Cal Parks app, they selected the trail they wished to explore. The Outdoor Compass app put them in the right direction, and Digital Altimeter app let them calculate the climbs.
Along the way, they could use smart-phone apps to identify wildlife tracks, scat, birds, the songs of birds, butterflies, wild mushrooms, and trade information on standing journals. At dusk, they could turn on a simulated Coleman lantern or campfire on their screen. As the stars emerged, they could use Sky Map to identify them.
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