A couple whose proposal was photographed by a passer-by have prompted a nationwide search after she shared the idyllic snap on Facebook and Twitter.

The stunning image, taken by 44-year-old Tracey Hollis-Rowe, captured a touching moment between the anonymous couple amidst the topographical beauty of the surrounding Dorset landscape.

Rowe, a Lancashire-based professional photographer and artist, was nearby taking photographs of Durdle Door when she suddenly noticed the pair, reports The Telegraph.

After a while, she noticed that the man was kneeling down on one knee, presenting the woman with a small jewellery box.

Clearly surprised, his presumed fiancée-to-be was seen with her hand in her hair, whilst the man smiled.

Whether or not she said yes remains unknown, hence Rowe’s appeal to find the couple and encourage them to get in touch with her.

Few conclusions can be drawn about the mysterious couple, other than the possibility that the man may also be a photographer, given that he had a camera slung around his neck.

Rowe posted the image on her Facebook and Twitter pages, writing “I hope the lady said yes! I captured this romantic moment yesterday at Durdle Door in Dorset... it would be lovely if the couple got to see this #hopelessromantic"

The Tweet was met with a flurry of respondents, eager to help Rowe in her search.

The wildlife photographer’s Instagram account is frequented mostly by snaps of scenery and delicate watercolour paintings of birds, rather than unknown couples proposing to one another.