Thursday July 28. On the way to Port an Chroi South Summit (Days) St. John is 1610 ft high and in all Ordovician (Two cliffs are once seen in North Summit. The summit stands out as green lead lands totally facing the sea. St. Johns Island is a low island pretty not run to just lips. On the west side in a once marked terrace, Terrace. As we turn into Port an Chroi harbor we see long cliffs of limestone some of which look modules.