Frederick's Fort is located near the Gulf of Algoa. It was built in 1799 AD to protect the city from Napoleon's invasion of the province. However, this invasion paved the way for the beginning of British rule in the region. The fort contained several sections, all aimed at protecting the city. Cannons and weapons, in addition to the upper floor. Today, the building has been turned into a historic site that can be visited and includes a small museum containing many of the original collectibles and weapons that were used at that time.