The area of Channel Islands National Marine Sanctuary is 3,807.283 square kilometers.
Channel Islands National Marine Sanctuary was created in 1980.
Hawaiian Islands Humpback Whale National Marine Sanctuary was created in 1992.
The area of Hawaiian Islands Humpback Whale National Marine Sanctuary is 3,625.983 square kilometers.
Monitor National Marine Sanctuary was created in 1975.
Stellwagen Bank National Marine Sanctuary was created in 1992.
Olympic Coast National Marine Sanctuary was created in 1994.
Fagatele Bay National Marine Sanctuary was created in 1986.
Cordell Bank National Marine Sanctuary was created in 1989.
Monterey Bay National Marine Sanctuary was created in 1992.
Florida Keys National Marine Sanctuary was created in 1990.
Gulf of the Farallones National Marine Sanctuary was created in 1981.
Gray's Reef National Marine Sanctuary was created in 1981-01.