Maps The maps below depict sanctuary boundaries on base maps with ocean depth and three-dimentional bathymetry. There are also a number of sanctuary boundary maps superimposed on nautical charts at various scales. Ocean Depth with Sanctuary Boundary The map shows the major Hawaiian Islands ocean depths, and the location of the Hawaiian Islands Humpback Whale National Marine Sanctuary. The sanctuary is comprised of five separate areas abutting six of the major islands of the State of Hawai`i. The five areas of the sanctuary cover relatively shallow offshore areas built up from the sea floor by the development of the Hawaiian Islands chain. (Sources. Hawaii topography: USGS DEM, Ocean bathymetry: ETOPO5, Humpback Whale NMS boundary: NOAA). Three-dimensional Map with Sanctuary Boundary This 3D perspective map shows the Hawaiian Islands chain from the sea floor. The boundary of the Hawaiian Islands Humpback Whale National Marine Sanctuary is indicated in pink. Though underwater, the Sanctuary actually lies near the summit of a massive undersea volcanic mountain range. (Click on image for larger view). (Sources. Hawaii topography: USGS DEM, Ocean bathymetry: ETOPO5, Humpback Whale NMS boundary: NOAA).   Sanctuary Boundaries Depicted on NOAA Nautical Charts The series of maps below show the sanctuary boundary on nautical charts. The charts should NOT be used for purposes of navigation. Click on the chart number to download a portable document format (pdf) of the chart. PLEASE NOTE: The pdf files are very large and may require considerable time for downloading. Chart 19004 (pdf, 9.3 mb) Nautical chart of the Hawaiian Islands and the full extent (1,370 sq. miles) of the sanctuary. (Source: NOAA) Chart 19327 (pdf, 10 mb) Nautical chart of the West Coast of the island of Hawaii and the southeastern-most portion (150 sq. miles) of the sanctuary. (Source: NOAA). Chart 19347 (pdf, 13.7 mb) Nautical chart of the channels between the islands of Moloka`i, Maui, Lana`i and Kaho`olawe, and the central portion (1,043 sq. miles) of the sanctuary. (Source: NOAA). Chart 19351 (pdf, 14.3 mb) Nautical chart of the channels between the islands of O`ahu, Moloka`i, and Lana`i, and the central portion (1,043 sq. miles) of the sanctuary. (Source: NOAA). Chart 19357 (pdf, 11.6 mb) Nautical chart of the island of O`ahu and the north (90 sq. miles) and south (47 sq. miles) O`ahu portions of the sanctuary. (Source: NOAA) Chart 19381 (pdf, 9 mb) Nautical chart of the island of Kaua`i and the northeastern-most portion (40 sq. miles) of the sanctuary. (Source: NOAA).   [top] Revised by the HIHWNMS web team on November 14, 2002. URL: http://hawaiihumpbackwhale.noaa.gov/maps/maps.html.