Property manager Liza Cole and marine ranger Georgia Conolly along with two volunteers used a fish box off the beach to guide the adventurous pup back to the sea.
"Seal pups look very approachable, but a bite from a seal is an extremely dangerous thing," said Liza.
"They have very sharp teeth and carry some nasty diseases. We needed to act swiftly to protect the public and thankfully managed to get the young seal into the sea without incident."
The team believes the young seal had moved up the beach to enjoy some early spring sunshine.
St Abb's Head is home to thousands of seabirds and other wildlife. The nature reserve is open daily all year and the visitor centre reopens on April 1. Rangers run regular Seashore Safaris throughout the summer season.