Travel by Oslo Metro to the northern reaches of town, then enjoy a relaxed hike down the shaded banks of the Akerselva River and through scenic urban parklands. It’s a slightly downhill trek of just over four miles, beginning up in the Nydalen neighborhood along walking paths that trace this historic river as it runs from Lake Maridalsvannet, pristine source of the city’s drinking water, to the Oslofjord. Rambling at a very comfortable pace, you’re bound to spot other walkers, bicyclists and anglers; the river is quite popular among Oslo’s locals. Many of them live, work and play along the Akerselva – in loft-style apartments, modern offices and trendy shops that occupy converted industrial buildings that once hummed with activity along these banks in the 19th and 20th century. During the walk, you’ll pass several historical textile mills, spillways and statues honoring those who labored at these former factories. Breathe in the fresh, clean air and drink in the wonderful scenery as you meander through leafy woodlands and green spaces that happen to pass through the very center of Oslo. By the walk’s end, you’ll be right back where you began – at the cruise pier.