The Rock of Gibraltar Trail is named after a large glacial erratic along the southern end of the trail. This rock is the size of a small house. It is possible to climb up on the rock with the help of a rope on the back. If you decide to climb the rock be extremely careful. This rock is over 5 meters high with no edges. An interpretive sign next to the trail explains how this glacial erratic was left here.
The trail accesses the shores of Lake Glansevern several times. The trail gets quite wet and travels through a small bog past the Rock of Gibraltar to the south. Here the trail is a boardwalk to keep you out of the deep, dark mud. When we were there last we found several large green frogs croaking in the moss.