Wales' Dark Skies w/ Alyn Wallace. [Short]
8:44
Wales' Dark Skies w/ Alyn Wallace. [Long]
8:29
Photographing the stars on the Welsh coast
1:00:03
Llyn Ogwen, Parc Cenedlaethol Eryri | Llyn Ogwen, Eryri National Park - 1 hour Chill Cymru Slow TV.
18:57
The devastating impact of light pollution | Alyn Wallace | TEDxAberystwyth
49:48
Our Planet | Coastal Seas | FULL EPISODE | Netflix
15:58
Exploring South Wales On A Motorcycle | Part 1
26:10
Cómo la contaminación lumínica está acabando con tu astrofotografía
30:06