| 1. | The actual light is 46 feet ( 14 meters ) above Mean High Water.
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| 2. | The light is above Mean High Water, and its white light is visible for.
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| 3. | The park does not extend beyond Mean High Water Mark on the adjacent coast.
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| 4. | Flat Holm Lighthouse is high and above mean high water.
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| 5. | The tower is tall with a focal height of 10 m above mean high water.
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| 6. | The light's focal plane is above mean high water.
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| 7. | The actual light is above Mean High Water.
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| 8. | The lantern stands above Mean High Water.
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| 9. | The island is extremely flat, lying below mean high water level and consequently is at risk of flooding.
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| 10. | The lighthouse, which is tall, has a light that is above mean high water and a range of.
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