Moderator: Martin Hairer
It is in the manual, but searching for "move to maker" won't find it. "Find marker" is also a fruitless search. Curiously, there is no mention of a way to move to a marker in the "Markers" section of the manual. You would have to guess the phrase "Moves insertion point to the previous marker", in order to get the search function of Preview to find the method. My guess is that no one would ever guess this phrase.
However, the method for moving to a marker is <option> and <option>, which will get you to the previous and next markers, respectively. This can be found on page 37 of the current English version of the manual, in the section Keyboard Shortcuts.