Lia Markwick and Stephen Winslade, who were walking Poppy as a favor for Lia's brother, said the canine was chasing a seagull and made a flying leap from the cliff in Seaford, England, The Sun reported Monday.
Markwick and Winslade said they expected to look down and see Poppy's body, but instead the dog had managed to avoid hitting the rocks below and landed in the high tide, allowing her to swim to a nearby beach. Markwick said they called Coast Guard authorities, who recovered the canine after it made its way to dry land.
The dog's owners, Ben Markwick and Kelly Ixter, said Poppy suffered a collapsed lung but is expected to make a full recovery.
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