Coastal theme

Stages with a coastal theme are set on the shoreline or on islands, often featuring tropical beaches. Common elements include aquatic enemies, paths of sand and normal enemies. Despite being surrounded by water, coastal themed stages tend to not have any underwater elements and the large bodies of water surrounding these stages tend to be bottomless pits.

Stages with a coastal theme

 * Oil Ocean Zone, Sonic the Hedgehog 2 (1992) - This stage also incorporates industrial themed stage.
 * Labyrinth of the Sea, Sonic Labyrinth (1995)
 * Lake Rocky, Tails Adventure (1995) - This stage also incorporates elements of the underwater theme.
 * Resort Island, Sonic R (1997)
 * Emerald Coast, Sonic Adventure (1998)
 * Metal Harbor, Sonic Adventure 2 (2001)
 * Weapons Bed, Sonic Adventure 2 (2001)
 * Neo Green Hill Zone, Sonic Advance (2001) - This stage starts out on a beach but quickly moves into the Green Hill theme.
 * Seaside Hill, Sonic Heroes (2003)
 * Ocean Palace, Sonic Heroes (2003)
 * Emerald Beach, Sonic Battle (2003)
 * Sunset Hill, Sonic Advance 3 (2004)
 * Water Palace, Sonic Rush (2005)
 * Huge Crisis, Sonic Rush (2005)
 * Wave Ocean, Sonic the Hedgehog (2006)
 * Plant Kingdom, Sonic Rush Adventure (2007) - This stage starts out on a beach but quickly moves into the forest theme.
 * Coral Cave, Sonic Rush Adventure (2007)
 * Hidden Islands, Sonic Rush Adventure (2007)- Some are based on the stages themes.
 * Blue Coast Zone, Sonic Rivals 2 (2007)
 * Jungle Joyride, Sonic Unleashed (2008) - This stage also incorporates elements of the forest theme.
 * Dolphin Resort, Sonic Free Riders (2010) - This stage also incorporates elements of the underwater theme in Standard Mode.
 * Seaside Hill, Sonic Generations (2011)
 * Emerald Coast, Sonic Generations (2011)
 * Tropical Coast, Sonic Lost World (2013)
 * Seaside Beach, Sonic Boom: Shattered Crystal (2014)
 * Scrapyard, Sonic Boom: Shattered Crystal (2014) - This stage incorporates a few elements from both the coastal theme and the industrial theme.
 * Tropical Coast, Sonic Runners (2015)