Crocheting on the dock is great! You can sit and chat while you work and soak up the rays. Remember, make sure your fiber can get wet!
And, uh, make sure your pattern can get wet too. That, or be smart enough to hold it in place, or you too may hear "Is that paper supposed to be floating in the lake?"
Those new anti-gravity chairs that are getting popular are great to crochet on! They put you at a perfect angle.
You also get a great view of your work with the lovely forest above.
And perhaps most importantly- the best thing to do around the campfire doesn't involve fiber at all- enjoy your marshmallows and I hope you guys are having a great summer!