The Misteriosa Bank is a submerged bank or atoll in the Caribbean Sea, located at (18°48′N83°54′W) – approximately equidistant from Mexico (380 km or 210 nmi), Honduras (345 km or 186 nmi) and Cuba (320 km or 170 nmi). The bank is 39 km (24 mi) long and 3 to 11 km (1.9 to 6.8 mi) wide. The area is 322 km² (124 sq mi). Immediately south of it is Rosario Bank. The closest piece of land is the Swan Islands, Honduras, 140 km (76 nmi) to the south and separated from it by the more than 5,000-metre-deep (16,000 ft) Cayman Trench. The reported depth is 20 metres (66 ft) on the average [5] or up to 22 metres (72 ft), with depths of 14–18 metres (46–59 ft) along the rim, or 12.8–49 metres (42–161 ft) [6].