Guaynabo, Puerto Rico in the context of "Cataño, Puerto Rico"

Bayamón (Spanish pronunciation: [baʝaˈmon], locally [baʝaˈmoŋ]) is a city and municipality in Puerto Rico. Located on the northeastern coastal plain, it is bounded by Guaynabo to the east, Toa Alta and Naranjito to the west, Toa Baja and Cataño to the north, and Aguas Buenas and Comerío to the south. Part of the San Juan metropolitan area, Bayamón is spread over 11 barrios and the downtown area and administrative center of Bayamón Pueblo. With a population of 185,187 as of the 2020 census, it is the second most populated municipality in the archipelago and island after the capital of San Juan.

San Juan Bay (Spanish: Bahía de San Juan) is a semi-enclosed bay, estuary, and harbor connected to the North Atlantic Ocean in the northeastern coastal plain of the main island of Puerto Rico. Surrounded by the capital municipality of San Juan and adjacent municipalities within its metropolitan area, namely Guaynabo, Cataño, and Toa Baja, the bay is home to Port of San Juan, the primary seaport in the archipelago and island. About 3.5 miles (5.6 km) in length and 0.55 to 2 miles (0.89 to 3.22 km) in width, it is the largest body of water of several interconnected lagoons, channels, rivers, and creeks in the San Juan Bay Estuary, which covers about 83 square miles (215 km) of land and 14 square miles (36 km) of water in the San Juan metropolitan area in northeastern Puerto Rico.

Named after John the Baptist, whose name explorer Christopher Columbus gave to the main island of Puerto Rico as San Juan Bautista (Saint John Baptist) upon its discovery during his second vovage in 1493, San Juan Bay was first discovered and explored by Spanish conquistador Juan Ponce de León, who began the European colonization of the archipelago along its shorelines.

Aguas Buenas (Spanish pronunciation: [ˈaɣwas ˈβwenas], locally [awaʔ ˈβwenaʔ]), popularly known as "La Ciudad de las Aguas Claras" or "The City of Clear Waters", is a town and municipality of Puerto Rico located in the Central Mountain Range, north of Cidra, south of Bayamón, Guaynabo and San Juan; east of Comerio; and north-west of Caguas. Aguas Buenas is spread over 9 barrios and Aguas Buenas Pueblo (the downtown area and the administrative center of the city). It is part of the San Juan-Caguas-Guaynabo Metropolitan Statistical Area.