Pedro Bank is a large bank of sand and coral, partially covered with seagrass, about 80 km south and southwest of Jamaica, rising steeply from a seabed of 800 metres depth. It slopes gently from Pedro Cays to the west and north with depths from. The total area of the bank within the isobath measures. The area of a depth to is triangular, long east-west, and wide. are less than deep. With its islets, cays and rocks, a total land area of, it is the location of one of the two offshore island groups of Jamaica, the other one being the Morant Cays. The bank is centered at. Pedro Bank is a part of submarine Nicaragua Rise, which stretches from Cabo Gracias a Dios through Rosalind Bank to Jamaica.
History
Pedro Bank was originally named 'Viper Bank', Placer de la Víbora, by Spanish mariners because its shallow reefs, rocks and shoals are laid out in the shape of a gigantic serpent. It was once a busy and treacherous shipping passage used by seafaring Europeans in the sixteenth and seventeenth centuries; archaeologists estimate there are over 300 shipwrecks on the Bank. Pedro Bank was annexed by the United Kingdom in 1863 and added to Jamaica in 1882. Today the Bank is known for its economic and cultural importance; it is the main harvesting ground for Queen Conch in the Caribbean and is highly valued by Jamaica's fishing community who have been operating on the Bank and using its small Cays as a base since the 1920s.
Cays, rocks and reefs
Pedro Cays, at, four small, flat, low-lying and mostly uninhabited cays, lie about midway along the southern edge of the eastern half of Pedro Bank. The sparse land vegetation consists of six species of plants, none of which are endemic. The cays are regionally important seabird nesting and roosting areas and also provide several endangered turtle species such as hawksbills and loggerheads with nesting grounds. The islets yield some guano and coconuts. More importantly, they represent the primary harvesting area for the largest export of Queen Conch from the Caribbean region. They were occupied by the British in 1863 and made part of Jamaica in 1882. They are considered part of the parish of Kingston, for all purposes except taxes.
Northeast Cay,, at, is covered with brush and has a group of palm trees growing on its northwest side. There is a lighted beacon in the north.
Middle Cay,, at is covered with low grass and bushes. A Jamaican Coast Guard station and a fishermen's camp with number of huts and a large shed are in the southeast.
Southwest Cay,, at, the largest of the Pedro Cays, is a protectedbird sanctuary, with a large tree.
In a wider sense, some over-water rocks, small outcrops of oolitic limestone over which water breaks, are considered part of the Pedro Cays:
Portland Rock, at, lies about 63 km SSW of Portland Point, the southern extremity of Jamaica. The rock consists of two summits that lie in an east-west direction.
Blower Rock, at, lies 8 km southwest of Portland Rock, and is 0.6 m high.
Shannon Rock, at, lies about 15 kmWSW of Blower Rock. It is 0.5 m high.
There are several submarine features on Pedro Bank, such as:
Banner Reef, at, awash and 2.4 km long, lies 26 km WSW of South Cay.
Southwest Rock, at, lies about 9 km southwest of Banner Reef.
Willsteed Rock, at, with a depth of 12, lies 13 km northwest of Blower Rock.
Doyle Shoal, at, with a depth of 14 m, lies 13 km NNW of Blower Rock.
Powell Knoll, at, lies 32 km southwest of Shannon Rock, with a lowest depth of 28.8 m. It is the southernmost feature of Jamaica, not counting Alice Shoal, which is claimed by Jamaica but considered part of Colombia.
