St. Olaf's Church in Tallinn, Estonia, is a prominent historical landmark, easily accessible on foot within the Old Town. While the main church area is generally accessible, climbing the iconic tower involves numerous steep, narrow stairs and is not wheelchair-friendly. Both solo visits and guided tours are popular; a solo visit allows for independent exploration, while guided tours often provide richer historical context. The church interior is typically open year-round, but the tower climb is seasonal, usually available from April/May to October, weather permitting. Entry to the church is often free or by donation, with a small fee (a few euros) required to climb the tower. A typical visit to the church interior takes 15-30 minutes, extending to 60-90 minutes if you include the strenuous but rewarding climb to the top for panoramic views of Tallinn and the Baltic Sea.