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Ffynnon Llugwy

Filmed as Upland lake country

📍 Ffynnon Llugwy, Carneddau, Eryri, Capel Curig, United Kingdom

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Ffynnon Llugwy
Photo: Trevor Littlewood  · CC BY-SA 2.0 · via Wikimedia Commons

Scene breakdown

  1. Upland lake country

    House of the Dragon S03E04

    Wide water and mountain plates as the war moves through the Riverlands.

    Daemon Targaryen

Real-world history

Oligotrophic reservoir-lake under Carnedd Llewelyn. Welsh Government named it a Season 3 location — high-water geography for God's Eye / upland Riverlands plates.

Logistics & accessibility

Admission: Open mountain. Weather and navigation matter; this is not a roadside lake.

Parking & accessibility: Limited A5 / Ogwen overflow; then a proper hill walk.

Best time to visit: June–September, settled forecast only.

What else to see here

  • Ogwen Valley

    Valley

    adjacent