Around the world Marine Conservation Parks are developing, slowly. Some are actually areas within an ocean, others are along an ocean shoreline and yet others are on watersheds leading to oceans. We can all urge governments to establish more marine conservation areas to protect our waters, marine life, animals and humans.

https://www.knowledge.ca/program/national-geograph...

Many other countries have established Marine Reservations:

http://oceana.org

http://oceana.org/our-campaigns/protect_habitat/vi...

British Columbia: Gwaii Haanas National Park Reserve, National Marine Conservation Area Reserve and Haida Heritage Site:

Together, the Government of Canada and the Council of the Haida Nation manage the special place called Gwaii Haanas. The name means “Islands of Beauty” in the Haida language and the area embodies the rugged beauty and rich ecology of this remote Pacific Coastal region. The Haida Gwaii Watchmen work closely with Parks Canada to watch over important cultural sites including the standing poles at SGang Gwaay, a UNESCO World Heritage Site. Giant Sitka spruce, breeching humpback whales, waters teaming with salmon and herring – these are a few of the wonders you may witness on your visit. Come explore!

Ontario: Fathom Five National Marine Park of Canada

The deep and sparkling waters at the mouth of Georgian Bay are home to Fathom Five - Canada's first National Marine Conservation Area. The park preserves a rich cultural legacy that includes 22 shipwrecks and several historic lightstations. Fathom Five's freshwater ecosystem contains some of the most pristine waters of the Great Lakes. The rugged islands of the park are a reminder of the impressive lakebed topography found beneath the waves. (The Great Lakes are amongst the largest watershed in the world).

Quebec: Saguenay–St. Lawrence Marine Park An area to discover in depth! Since its creation in 1998, the marine park has worked to protect and present the marine environment of a section St. Lawrence Estuary and the Saguenay Fjord. With a surface area of 1,245 km2, this large ecosystem is unique because of its sea bottom topography and its fjord . The confluence of waters of the St. Lawrence Estuary with those of the Saguenay Fjord creates exceptional oceanographic phenomena promoting significant biological diversity . Five cetacean species inhabit the waters of the marine park, including the St. Lawrence beluga, a protected species. In all, more than fifteen species of marine mammals have been reported, which bears witness to the marine park’s ecological significance. As well, the area surrounding the Saguenay St. Lawrence Marine Park has a long history of human inhabitation and is a place of importance in North American history. On this land, Amerindian and European civilizations came into contact, a contact that made a lasting impact.

Ontario: Lake Superior National Marine Conservation Area Parks Canada is in the process of establishing this conservation area.

British Columbia: Haida Gwaii, northern Vancouver Island and the North and Central coasts.

British Columbia First Nations and the provincial government have signed a marine-use plan covering a large section of the coast, including Haida Gwaii, northern Vancouver Island and the North and Central coasts. The Marine Planning Partnership deal between the government and 18 First Nations includes plans to guide marine uses and protect ocean health. The two sides have been working on a joint coastal management agreement for several years. B.C.'s northern coastal waters are home to many First Nations who use the ocean as a major food and economic source. Those same areas are facing major development and possible environmental issues, with proposed liquefied natural gas export plants and plans for supertankers carrying oil-based products along the coast. The marine plan is expected to cover more than 100,000 kilometres of coastline.

Easter Island region: Chile worked with local governments to establish a large marine conservation area in the Pacific Ocean then seeing success it was decided to expand the conservation area, called Isla Salas y Gomez.

http://voices.nationalgeographic.com/2010/10/06/ch...

The UK has designated all coastal areas of England, Scotland and Wales as Marine Conservation Areas:

http://jncc.defra.gov.uk/page-5201

California was the first state to pass a Marine Conservation law and now has 124 Marine Conservation Areas. With the passage of the Marine Life Protection Act in 1999, California became the first in the nation to require a statewide network of marine protected areas (MPAs) to protect the integrity of marine ecosystems, rebuild depleted marine life populations, including those of economic value, and improve ocean health.

Florida has both a Marine Conservation law and Marine Conservation Areas, working with the universities to restore and protect marine life. The coastal regions of Florida are very protected even to the extent it is against the law to turn porch or yard lights on along the shores when sea turtles are breeding. Residents have learned to value and protect marine life.

http://www.mcatoolkit.org/Resources/US_State_Maps/...

With the help of the government Australia now has the largest marine conservation area in the world. 

http://www.marineconservation.org.au/?gclid=CLHg4N...

Nature . org  lists many conservation projects worldwide:

With marine conservation staff and projects in more than 30 countries and all coastal U.S. states and territories, The Nature Conservancy works with partners to create lasting conservation results that benefit marine life, local communities and economies. Examples of our marine conservation work around the world include:

Gulf of Mexico

Recovery Act restoration projects

NOAA partnerships 

Florida Keys coral reefs

Palau coral reefs

Coral Triangle

Solomon Islands

Raja Ampat
Papua New Guinea
Micronesia Challenge

Palau

Long Island Sound

Florida Keys coral reefs

Humboldt Current, Peru
California’s Central Coast
Gulf of Maine

Pedro Bank, Jamaica

Dominican Republic

Coral Triangle

Solomon Islands

Raja Ampat
Papua New Guinea

Costa Rica

Caribbean Challenge