Sombrero Reef is a designated SPA area and is one of the more popular scuba diving and Florida Keys snorkeling destinations in Marathon. The area’s name is derived from the 142’ lighthouse which is located in the northern section of the SPA region.
Coffins Patch Sanctuary Preservation Area (SPA) 距離基殖民地海灘約 4 英里,是中群島最好的浮潛和潛水場所。最大深度約 25-30 英尺/7 -9m。