Pennington and Oxey Marshes are divided into 11 designated SSSIs ( references listed below ) .
Pennington Common and Upper Common are designated Sites of Special Scientific Interests ( ' SSSIs ' ) .
Pennington and Oxey Marshes are divided into 11 designated SSSIs ( SSSIs listed below ) .
Pennington Common and Upper Common are designated Sites of Special Scientific Interests ( ' SSSIs ' ) .