The A92 in Kincardineshire was also closed to allow emergency services access to the area.
Crews remained at the scene for more than four hours as search efforts got underway.
The Den of Finella is described as a scenic spot steeped in myth and legend.
White water roars 70ft down a sheer ravine, through a green canopy and into a series of plunge pools.
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Body of woman, 53, recovered in search at St Cyrus beauty spot
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