Brecknock Botany
Brecon
Brecon and Merthyr Tydfil Junction Railway
Brecon Beacons
Brecon Mountain Railway
Bredwardine
British Wildlife Centre
Bronllys
Brychieniog Forest
Bryn Teg
BSBI Botany
Builth Wells
Burfa
Burghley House
Burghley Park
Burnsall
Burren
Burry Port
Burton Bradstock
Buttington
Bwlch
Cadair Fawr
Cae Bryntywarch
Cae Pwll y Bo
Caersws
Caha Mountains
Caldicot
Cambrian Mountains
Cantref
Capel y ffin
Cardigan
Carneddau
Carngafallt
Castell y Geifr
Castledonovan
Castletown Berehaven
Cefn Cil Sanws
Cheddar Gorge
Cilmery
Cleeve Toot
Clifford
Clodagh
Clonakilty
Clyro
Coed Cefn
Coed Dyrysiog
Coed Hafod y Llyn
Coelbren
Corfe
Cork
Cork, Bandon and South Coast Railway
Corn Du
Corris
Cotswolds
Courtmacsherry
Coxwold
Crai
Craig Cerrig Gleisiad
Craig Chwefri
Craig y Cilau
Craig y Ddinas
Craig y Fan Ddu
Craig y Fro
Craig y Nos Country Park
Craig y Rhiwarth
Crickadarn
Crickhowell
Crossmahon
Crystal Palace
Cusop