Temptations of Two

I see the theme of Rogers essay to be that there is both joy in traveling alone and with another person.  I see this at the end when she is talking about how being alone is perfect, but that two people allows for more adventure.
An example of language I found effective is when she is talking about the feeling after being on the river and referring to it as a "tantalizing heat".  I thought this was an effective way of relating to the reader the exact feeling.
Another example of language I found effective was when she relates loneliness and freedom.  I think this helps explain both the positives and negatives one feels when one travels alone.