Midway up The Hólabyrða Mountain is the ledge called Gvendarskál. Short, but steep walk on a stony path, along a marked trail to the Bishop’s altar (Guðmundur the Good). There you will have a beautiful view over Hjaltadalur Valley and the Skagafjörður bay beyond. At the altar you will find a box with a guestbook where you can leave your name.