Perched off the coast of Rockport, Massachusetts, stands the Cape Ann Light Station, commonly known as the Thacher Island Twin Lights. These iconic twin lighthouses are the last operational twin lights in the United States, guiding mariners safely past the treacherous Londoner Ledge since their establishment.
History of Cape Ann Light Station
Established in 1771 under British rule, the original twin lighthouses on Thacher Island were both the first in North America designed to mark a hazardous location rather than a harbor entrance and the last lighthouses built under British colonial rule. Petitioned by John Hancock to protect his shipping interests, they were constructed to warn sailors of the dangerous Londoner Ledge, a reef responsible for numerous shipwrecks.
The current granite towers, each standing 124 feet tall, were erected in 1861, replacing the original structures to accommodate advancements in lighthouse technology.
The Christmas Storm of 1864
One of the most famous stories in American lighthouse history occurred at Thacher Island. On December 21, 1864, keeper Alexander Bray left the island to take a sick assistant keeper to the mainland for medical care. A fierce blizzard struck before he could return. His wife Maria Bray and her 14-year-old nephew Sidney Haskell kept both lights burning through the storm, climbing the 156 steps in each tower repeatedly through the night to refill the oil lamps. The story has since inspired books and remains a celebrated example of lighthouse keeper dedication.
Cape Ann Light Station Architecture and Design
The towers are constructed from New Hampshire granite, featuring a conical shape that tapers from a 30-foot diameter at the base to 18 feet at the top. The 1861 towers were originally equipped with first-order Fresnel lenses, each approximately 9 feet tall and weighing several tons, enhancing the visibility of the lights to mariners. The interior houses a 156-step cast iron spiral staircase leading to the lantern room.
Location and Surroundings
Thacher Island is situated about a half-mile off the coast of Rockport, Massachusetts, encompassing approximately 50 acres. The island offers visitors scenic trails, diverse wildlife, and panoramic views of the Atlantic Ocean. The northern part of the island is designated as the Thacher Island National Wildlife Refuge, providing a habitat for various bird species.
Visiting Cape Ann Light Station
A visit to the Thacher Island Twin Lights offers a unique blend of natural beauty and historical significance.
Getting There
Access to Thacher Island is primarily by boat. The Thacher Island Association operates a launch service on Wednesdays and Saturdays from mid-June to mid-September, departing from Rockport. Reservations are required and can be made by calling 617-599-2590. Private boats are also welcome; moorings are available on a first-come, first-served basis.
Visiting Hours
The island is open to visitors from mid-June until mid-September. While specific hours may vary, day trips are typical, allowing ample time to explore the island’s features.
Admission
A nominal fee is charged for the boat service operated by the Thacher Island Association. There is no additional admission fee for exploring the island.
Guided Tours
While formal guided tours may not be available, the island features a visitor center and museum where guests can learn about the history of the lighthouses and the island. Visitors can also climb the tower for a panoramic view of the surroundings. Each summer, one of the two towers are open to visitors.
Visitor Guidelines
- Respect all signage and barriers to protect the lighthouses and surrounding wildlife refuge.
- Stay on designated trails such as Ann’s Way to protect the island ecosystem.
- Plan ahead: there are no facilities, food, or water on the island. Bring everything you need.
- Be mindful of weather conditions and tides when traveling to and from the island.
Plan Your Visit
A trip to the Cape Ann Light Station on Thacher Island offers a unique opportunity to experience maritime history amidst the natural beauty of coastal Massachusetts. Whether you’re a history enthusiast, nature lover, or simply seeking a peaceful retreat, the twin lights provide a memorable destination. Don’t forget to bring your camera to capture the stunning vistas and historic architecture.