Derrey ny traaghyn mean-eashagh, va Nerin gloo-choodit rish darree, juyssyn as beihyn. Jiu ta keylljyn coodaghey mychione 9% (4,450 km² ny un villioon d'acyryn) eaghtyr Nerin, as ta'n earroo shoh taishbyney dy vel Nerin ny h-ard smoo jee-cheyllit 'syn Oarpey. Ta cooid vooar jeh'n thalloo coodit rish thalloo fassee, as ta ram dooieyn dy lossreeyn feie. Ta aittin (Ulex europaeus), conney frangagh feie, ry-gheddyn dy mennick ayns thallooyn ard, as ta renniee ry-gheddyn dy mennick ayns ny h-ardjyn smoo bog, 'sy neear er lheh. Ta Nerin ny balley da keeadyn dy ghooieyn dy lossreeyn, as fir oc nagh vel ry-gheddyn magh ass yn ellan, as t'ee er ny ve ""coloinit"" rish faiyryn, lheid as Spartina anglica.