Fort Frederick is a historic fortress located in Trincomalee, a coastal city in northeastern Sri Lanka. The fort has a rich history dating back to colonial times and is one of the most significant landmarks in the area.

Originally built by the Portuguese in the 17th century, Fort Frederick was later captured and expanded by the Dutch. It was named after Frederick, the son of William III of Orange-Nassau. The British also made additions and modifications to the fort during their colonial rule.

The fort is strategically positioned on Swami Rock, a rocky promontory overlooking Trincomalee Bay. It offers panoramic views of the Indian Ocean and the city. Fort Frederick is notable for its massive stone walls, bastions, and cannons, which reflect the architectural influences of different colonial powers.

Within the fort complex, you can find various structures and features, such as the Koneswaram Temple, a Hindu temple dedicated to Lord Shiva, which predates the fort itself. The temple is an important pilgrimage site and is situated within the fort's premises.

Today, Fort Frederick is a popular tourist attraction, drawing visitors with its historical significance, architectural charm, and stunning views. It provides insights into Sri Lanka's colonial past and serves as a reminder of the country's diverse cultural heritage.