▁the ▁North ▁Sea . ▁ ▁Dor no ch ▁F irth ▁( nor thern most ▁of ▁the ▁eastern ▁f irth s ) ▁Places : ▁Dor no ch , ▁Dor no ch ▁F irth ▁Bridge ▁( road ▁bridge , ▁ ▁long ), ▁Bon ar ▁Bridge , ▁K yle ▁of ▁S uther land , ▁T ain , ▁Port ma hom ack ▁on ▁Tar bat ▁N ess ▁( f ishing ▁village ▁facing ▁west ▁to ▁north west ▁on ▁the ▁east ▁coast ). ▁R ivers : ▁O y kel , ▁Cass ley , ▁Shin ▁and ▁Car ron ▁Head land : ▁Tar bat ▁N ess . ▁C rom art y ▁F irth ▁( lo ch - type ▁f irth ▁with ▁relatively ▁narrow ▁opening ▁to ▁the ▁sea ). ▁The ▁F irth ▁runs ▁out ▁into ▁the ▁Mor ay ▁F irth . ▁Places : ▁C rom art y , ▁D ing wall , ▁In ver g ordon . ▁R ivers : ▁Con on , ▁Or rin , ▁Rus dale , ▁G lass , ▁Al ness . ▁Mor ay ▁F irth ▁and ▁Be a uly ▁F irth ▁( a ▁lo ch - type ▁f irth ) ▁connected ▁with ▁the ▁F irth ▁of ▁In ver ness . ▁The ▁F irth ▁of ▁In ver ness ▁is ▁rarely ▁identified ▁on ▁modern ▁maps , ▁but ▁forms ▁a ▁connection ▁via ▁the ▁River ▁N ess , ▁L och ▁N ess ▁and ▁the ▁other ▁lo chs ▁of ▁the ▁Great ▁Glen ▁and ▁st ret ches ▁of ▁the ▁C aled onian ▁Canal ▁with ▁the ▁F irth ▁of ▁Lor ne ▁on ▁the ▁west ▁coast