In fact, marine reserves can take many different forms. Depending on local plans and laws, there are a variety of possible structures. At present, the most favored format is a marine reserve that does not limit non-extractive activities like fishing, recreational activities, shipping, or even military exercises.
海洋保護區分為許多種，根據規劃與當地法令的不同，可進行的活動也就不同，目前最被提倡的是「禁止一切榨取自然資源活動」的海洋保護區概念，包括漁業、海上休憩、海輪運輸，甚至軍事活動都應受到節制。