Pictures taken back in 1934 show tourists enjoying trips to the beach and camping at Minsmere on the Suffolk coast.
The 87-year-old images, from before the Second World War, have been uncovered by John Last, having previously been owned by his father.
Mr Last decided he would share the long-lost pictures, which show people lounging in the sun on the beach and setting up campsites, on social media.
He said: "The pictures form an album belonging to my late father. They were probably all taken on a basic box camera by one of the group.
"It was only recently that l rediscovered the album in a chest of drawers.
"The pictures are 87 years old, yet seemingly timeless."
Minsmere and the surrounding area have drastically changed in the time since the pictures were taken - including the designation of the RSPB nature reserve and the construction of the Sizewell nuclear power stations.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here