The National Defence University is located in a military area. You must apply for permission to enter the area. The National Defence University Library, however, is open to the general public. It is located in Santahamina House, which is just 200 metres from the main gate.
Please notice, that foreign library customers (Non-Finnish citizens) must send personal details (name, date of birth, nationality, passport number, visiting date) at least one week before planned arrival to Santahamina via e-mail (firstname.lastname@example.org).
After confirmed visiting permission, NDU Library must be visited on the exact date given. In addition to the taxi services, NDU Library is also reachable via local transportation. From Helsinki city center, take subway towards east and get off at Herttoniemi subway station. From Herttoniemi, take local bus n:o 86 (Santahamina). At Santahamina military checkpoint step off the bus and show your passport to the military police. After confirming the permission, there is some 200 m walking to the Santahamina Building, in which the NDU Library is located. There is also a cafeteria serving the customers. More information of Helsinki local transportation can be found here.