The surprise visitors spent around 20 minutes in the water between Hythe Marina and the pier.
Their appearance soon caught the attention of residents at the marina, who came over to catch a glimpse of the pair swimming together.
Dolphins swimming near Hythe Marina (Image: Noah Walton)
The memorable sight was captured on camera by Noah Walton, a young casual worker at Hythe Marina Village, who photographed the dolphins during their visit.
The pair remained close together as they moved through the shallow water, giving those watching nearby plenty of time to see them.
Hythe Marina Village said that one onlooker suggested the dolphins may have been young.
After around 20 minutes, the dolphins began to move away from the marina before making their way back towards the main waters of the Solent.