Page 20 - Brecon Beacons Welcome Guide 2025

18 dark skies
When is best to stargaze?
The best time to go are the days before, during and soon
after each new moon, when there is no moon in the sky.
Wrap up warm and if you have got a telescope
or binoculars bring them along.
Top Darkest Spots!
Darkness is the vital ingredient for a stargazing site which
means these top sites are a little off the beaten track.
Use the app what3words, which will work with mapping
apps on your smartphone, to get you to the perfect
stargazing spot. If you prefer paper we have also provided
an OS grid reference.
Usk Reservoir
OS grid ref SN 835285
What3words graphics.reflected.cube
Nearest town Usk
This area enjoys a naked eye limiting magnitude of 6.4
and is protected from the light pollution of the South Wales
valleys.
Crai Reservoir
OS grid ref SN 288278
What3words wedge.scout.tomato
Nearest village Crai
Pull off the A4067 and admire the stars above
the blackness of the reservoir.
G
O
T
O
O
U
R
W
E
B
S
I
T
E
F
O
R
M
O
R
E
I
N
F
O
R
M
A
T
I
O
N
T
H
E
B
R
E C O N
B
E
A
C
O
N
S
.
W
A
L
E
S