Name and Location

The Mercusuar Willem III is a historic lighthouse located in Bandarharjo, Kecamatan Semarang Utara, Kota Semarang, Jawa Tengah 50175, Indonesia.

Construction and History

The Mercusuar Willem III was built in the early 20th century to aid navigation for ships entering the Semarang harbor. The lighthouse is named after King Willem III of the Netherlands, who ruled the Dutch East Indies at the time. During its operational years, the lighthouse played a crucial role in ensuring the safety of vessels and preventing accidents.

Architecture and Materials

The Mercusuar Willem III is a cylindrical structure with a height of approximately 15 meters (49 feet). The lighthouse is made of stone and features a distinctive red roof and a white tower. Its architecture reflects the typical design of lighthouses built during that era, with a focus on simplicity and functionality.

Light and Navigation

The lighthouse was equipped with a Fresnel lens and a rotating optic to produce a powerful beam of light. The light was visible for approximately 10 nautical miles (18 kilometers) out at sea. Although the original light source is no longer in operation, the lighthouse remains an important landmark and tourist attraction.

Accessibility and Visiting

The Mercusuar Willem III has been decommissioned as a functional aid to navigation, but it continues to serve as a historic monument and popular tourist destination. Visitors can climb the tower for panoramic views of Semarang and the surrounding harbor.

Notable Views and Landscape

Visitors can enjoy panoramic views of Semarang and the surrounding harbor from the top of the lighthouse.

Anecdotes and Folklore

None available.

Technical and Operational Details

The Mercusuar Willem III was equipped with a Fresnel lens and a rotating optic to produce a powerful beam of light. The light source is no longer in operation, but the lighthouse remains an important landmark and tourist attraction.

Further Information

• * Indonesian National Lighthouse Commission
• * The Lighthouse Directory: Willem III Lighthouse