Longyearbyen is the biggest settlement in Svalbard. Seat of the Norwegian administration, it also has the best services and infrastructure in the archipelago. Located deep in the Adventfjord, a sidearm of the Isfjorden (Icefjord), Longyearbyen’s airport can be used all-year round, but its harbor is blocked by ice in winter. Most shops, hotels, restaurants and a hospital are within easy walking distance of the port. One of the most prominent buildings in town is the UNIS center, where several Norwegian universities have joined forces to operate and offer the northernmost higher education to both Norwegian and international students.