It's been said that a picture is worth a thousand words. Sometimes, a picture can be worth a little yellow smiley, which is better than a thousand words any day.
All the information needed to locate the logbook and stamp can be found at the posted coordinates. You're looking for a 5 gallon bucket. How hard can that be to find?
As always, pay attention for natural hazards such as snakes, spiders, poisonous plants, and Bigfoot. (He's been spotted here.)