The flames were fanned by wind across Aberlady local nature reserve and part of Gullane bent dunes, with a plume of thick smoke rising above.
Gullane Golf Club course manager, Stewart Duff, took the pictures and posted them on social media.
A fire service spokesman said that two fire appliances - one each from Haddington and North Berwick - were called to the scene at about 3:30pm on Sunday.
At its height, an area of 2 sq kilometres was damaged by the fire.
The spokesman said that firefighters used beaters to extinguish the flames, and that it was brought under control just before 6pm.
Details of exactly how the fire started remain unclear. No one was injured as a result.
Several social media users have been reacting to the pictures since they were posted yesterday evening.
One, @TerraFirmaScot, wrote: “You certainly don’t expect to see photos like this in February.”
Another, @ukgolfguy, said: “Wow, heard the sirens earlier but didn’t expect that. So mild this afternoon too, don’t remember a February day like it!”
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