"Camping" joke

Two men camping in the mountains had spent four days together,
and they were getting a little testy. One morning, the first
friend says, "You know, we're starting to get on each other's
nerves. Why don't we split up today.
I'll hike north and spend the day looking around, you hike south
and spend the day. Then tonight, we'll have dinner and share our
experiences over the campfire." The second friend agrees and
hikes south. The first man hikes north. That night over dinner,
the first man tells his story. "Today I hiked into a beautiful
valley. I followed a stream up into a canyon and ate lunch. Then
I swam in a crystal clear mountain lake. As I sat out and dried,
I watched deer come and drink from the stream. The wildflowers
were filled with butterflies and hawks floated all day overhead.
How was your day?"
The second friend says, "I went south and ran across a set of
railroad tracks. I followed them until I came across a beautiful
young woman tied to the tracks. I cut the ropes off and we had
sex in every imaginable way all afternoon. Finally, when I was so
tired I could barely move, I came back to camp."
"Wow," the first guy says, "did she give you a blow job?"
"Well no," says the second friend, "I couldn't find her head".