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Photo: Eric Fredericks, CC BY-SA 2.0 via Wikimedia Commons
Right on the Bay is this actually very nice and undervisited park. It's very green, actually has functioning benches and BBQ pits, and a small fishing pier. You are also likely to spot windsurfers who come to this windy spot on the Bay.
Candlestick Point State Recreation Area is a state park unit of California, United States, providing an urban protected area on San Francisco Bay. The park is located at the southeastern tip of San Francisco immediately south of Hunters Point and 2 miles (3.2 km) north of Sierra Point in Brisbane. This 170-acre (69 ha) landfilled area was intended to be used during World War II as a shipyard by the United States Navy. However it was abandoned as the war ended. Without government controls, the area was used by nearby residences as a garbage dump. In 1973 the California State Legislature purchased the land with US$10 million and in 1977 voted to turn this area into a California State Park. After the designation Candlestick became the first urban recreation area in the state. To this day Candlestick remains as a major recreation area in San Francisco, offering a wide view of the bay. The park features various picnic areas, two fishing piers, fitness courses as well as hiking trails. This park is also a popular area for windsurfing due to strong and regular winds.
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If you are feeling adventurous, try visiting the abandoned shipyard at Hunter's Point.
Overlooking Candlestick Park, this park has great panoramic views of the bay, however it's not one of San Francisco's better maintained parks.
Historic brewery, built in 1870, now used as a private residence.
A wooden structure built in 1888 and now used as a community meeting center.
Tours of the brewery are available on Friday evenings.
A 24-acre (10-hectare) restored wetland at the base of the Hunters Point Power Plant.