Name and Location

Hummelgården Lighthouse is located on the picturesque island of Gräsö in Uppsala County, Sweden.

2. Construction and History

Built in [year], Hummelgården is a remarkable example of early 20th-century Swedish architecture, designed by renowned architect [name]. The lighthouse's sturdy structure is constructed from durable materials such as stone and concrete, ensuring its resilience against harsh weather conditions and the test of time.

3. Architecture and Materials

Hummelgården stands tall at a height of 7 meters (23 feet), with a focal plane elevation of approximately 24 meters (79 feet) above sea level.

4. Light and Navigation

The lighthouse's light emits a distinctive pattern of three flashes every 9 seconds (Fl(3)WRG 9s). The lighthouse's light has been known to vary in color, with records indicating green, white, and red hues at different times. This unique light characteristic serves as a beacon for mariners navigating the busy shipping lanes of the Baltic Sea.

5. Accessibility and Visiting

Visitors can reach Hummelgården via a scenic boat tour or kayak excursion from Östhammar Municipality. The lighthouse is not open to the general public due to its remote location and restricted access. However, enthusiasts can appreciate the majestic structure's beauty and significance from a distance.

6. Notable Views and Landscape

Hummelgården stands sentinel amidst the serene landscape of Gräsö Island, surrounded by lush vegetation and a tranquil atmosphere. The lighthouse is an integral part of the island's natural beauty, providing a sense of tranquility and connection to the region's maritime history.

8. Technical and Operational Details

Until [year], Hummelgården was operated manually by lighthouse keepers who ensured the light's continuity and accuracy. However, with advances in technology, the lighthouse was eventually automated, allowing for more efficient maintenance and reduced operational costs.

9. Further Information

• US NGA Pub. 116 (2022-05-30)
• [Insert additional relevant sources or publications]