R. and I have hiked in Skyline Wilderness Park in Napa, California before. We thought we knew the way.
"We don't need to bother with the map", R. said. We had invited along a new MD friend to hike up to Lake Marie; followed by a trip along the Skyline Trail to admire the views of Napa and San Pablo Bay.
We took the wrong trail. After walking in circles for a couple of hours; getting lost and taking "short cuts"; struggling up multiple climbs; traipsing up a stream bed only to find that we had gone in a full circle back to where we had started---We decided to give it up and call it a day.
Next time we shall consult the map. Still--a good time was had by all. Getting lost can be fun if it is early enough in the day, with adequate daylight time to find your way back to the trailhead.