In this study, the fern flora of Akçaabat district in Sera Lake Nature Park, which is important in terms of socio-economic contributions to Trabzon province, was evaluated. The ferns were collected from the nature park in 2024 and their various morphological features including leaves and stems were studied in the laboratory. The identification was done using the determination keys on the known floras. Specimens were identified as seven species belonging to the families Aspleniaceae (Asplenium scolopendrium L., A. trichomanes L., A. adiantum-nigrum L.), Polypodiaceae (Polypodium vulgare L.), Equisetaceae (Equisetum arvense L.), Pteridaceae (Pteridium aquilinum (L.) Kuh), Dennstaedtiaceae (Adiantum capillus-veneri L.). Sporangium and spore structures of ferns were studied in detail for the first time in the country.