One of the things that I like from this episode is that we see Mulder and Scully in a different environment, away from the city and enjoying the nature... while trying to solve a case.
Mulder and Scully had always had a relationship in where many things are left unsaid, silence speaks more than words but we see something different here for a change. They have a conversation where they share so many points of view and that's why they are, to the date, one of the best couples on TV.
The case was kind of expected, as it is based on one of the biggest mystery ever. And it goes to both ends: what everybody witnesses and becomes tangible proof and the unexplainable that remains unseen.
Too bad Queequeg died... I really like the dog.