John, Ralph and myself (Eric) made the trek to the summit of St Marks. The hike is very popular with 200+ on the trail on a nice week-end. The first half of the trail is well groomed and easy walking. The trail improvement stops about half way and from there on the trail is easy to follow but it is very root infested and so one needs to be constantly watching where one steps.
The views from the summit are spectacular with several distinct viewpoints overlooking Howe Sound. We set up a bit back from the views and crowds. The view area is a bit below the activation zone but if one moves back from the view and slightly upslope you are within the zone and need not find a way to the actual summit which would involve a bit of a scramble.
For my complete report see my blog: https://www.scenicart.ca/content/saint-marks-summit
