View source for Levels with an ocean theme

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|:Category:Level themes  |l1=Level themes
|:Category:Levels with an ocean theme  |l2=Ocean theme }}
[[Image:Metalharbor.png|thumb|right|320px|[[Metal Harbor]] from ''[[Sonic Adventure 2]]'' is an example of the ocean theme.|link=Metal Harbor]]
The ocean theme represents levels that are set by or on the surface of an ocean. This theme first appeared in [[Oil Ocean Zone]] in ''[[Sonic the Hedgehog 2 (16-bit)|Sonic the Hedgehog 2]]''.

These levels are often set at the coastline of an island or other landmass and thus can have overlap with the [[:Category:Levels with a tropical island theme|tropical island theme]], such as [[Seaside Hill]]. Some ocean-themed levels may also be set on man-made structures atop an ocean's surface, such as [[Metal Harbor]]. The ocean itself may either feature [[:Category:Levels with an underwater theme|underwater areas]], function as a bottomless pit, or is simply a background piece.
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==Levels with an ocean theme==
{{LevelGallery|Levels with an ocean theme}}
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[[Category:Level themes]]