Spanish Harbor Key, Cay in Lower Keys, United States
Spanish Harbor Key is a cay in the Lower Keys situated between Bahia Honda Key and West Summerland Key, connected via U.S. Route 1 at mile markers 35 and 36. The island's shoreline provides multiple points for water-based activities and exploration.
The name comes from an anchorage between this key and Big Pine Key that served as a harbor during early Spanish maritime activities in the region. This sheltered water provided a natural meeting point for vessels traveling through the area.
Indian mounds on the island reveal how indigenous peoples once lived and used this location in the Lower Keys. These earthworks show the layers of human occupation that shaped the place over centuries.
Access to water and various activities like fishing, boating, and kayaking is available at multiple points along the shoreline. Planning ahead to identify your preferred entry point helps ensure a smooth visit to explore the surrounding waters.
The island holds remains of storage buildings from the Flagler Railway construction era, marking its role in Florida Keys development. These remnants show the logistical operations that supported one of the most ambitious railway projects ever built in America.
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