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Black Rock Sands,
Porthmadog, United Kingdom
No information
12.7°C
Last updated :
24/10/2026 06:00
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United Kingdom
Wales
Porthmadog
Black Rock Sands
Beach
Unnamed beach
Black Rock Sands
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
Unnamed beach
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Black Rock Sands
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Other
Pelagia N.
5 - 10 cm
Aurelia A.
25 - 40 cm
Rhizostoma O.
20 - 90 cm
Cyanea L.
15 - 30 cm
Physalia P.
10 - 30 cm
Chrysaora H.
15 - 30 cm
Velella V.
4 - 8 cm
Cyanea C.
30 - 200 cm
Mnemiopsis L.
7 - 12 cm
Description rapide
Estimated size :
Coin
Hand
Ball / Plate +
Dominant color :
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Pink / Violet
Brown / Yellow
Blue
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