Church of Agios Athanasios

The Church of Agios Athanasios is located in Griva.

Monastery of Panagia Goumenissa

The monastery of Panagia Goumenissa,^[6] was the occasion to create the small town of the same name which is the seat of the newly established (since 1991 AD) Diocese of Goumenissi, Axioupolis and Polykastro.

Holy Monastery of Saints Raphael, Nicholas and Irene

The Holy Monastery of Saints Raphael, Nicholas and Irene is located on a verdant slope of Mount Paikos, at an altitude of 600 m. Overlooking the valley of Axios, in the area of Griva and at a distance of 7 km. from Goumenissa.

Chapel of Saints Antonios and Theodoros Grivas

Outside Griva and at a distance of about 1.5 km, in a lush oak forest, is the chapel of Agios Antonios, a single-aisled basilica with a dome, which dates from 1901. The church was rebuilt in 1993.

Holy Monastery (convent) of Saint Nicodemus of Mount Athos

The Holy Monastery of Saint Nicodemus of Mount Athos is located in Central Macedonia and Paeonia of Kilkis. It is built on the eastern slopes of Mount Paiko at an altitude of 700 meters and west of the river Axios. It is 70 km NW. from Thessaloniki, 53 km W. from Kilkis and 22 km W.-ND. from Polykastro. To the east is Goumenissa, to the southeast is Pentalofos and to the northeast is Griva. The monastery is manly and was founded in 1981. It is part of the Holy Monastery of Simon Petra of Mount Athos and ecclesiastically belongs to the Diocese of Goumenissa, Axioupolis and Polykastro.

Flora and Funga

The vegetation of Paiko is considered lush.^[5] Large trees include:^{[5][10][11][12]}

• pine
• Quercus (oak) (especially Quercus pubescens and Quercus frainetto)
• plane (especially Platanus orientalis)
• alder (especially Alnus glutinosa)
• beech
• walnut
• chestnut
• cedrus
• willow
• populus
• apple trees

Smaller plants and fungi include:^[5]

• Species of grass
• Shrubs such as wild strawberries
• Mushrooms - a rare species (Daedaleopsis septentrionalis) known only in northern areas was discovered in 2009.^[13]
• Fern
• Flowers like Primula vulgaris, Scilla bifolia, Viola odorata, Galanthus elwesii and Crocus veluchensis

Fauna

Beside mammals (deer, rabbits) and vultures, notable animals include:^[1]

• Amphibians such as the great crested newt and the yellow-bellied toad.
• Reptiles such as Hermann's tortoise.
• The fish Sabanejewia aurata and the rare Mediterranean barbel.
• Lepidoptera (57 species have been identified^[14]) such as the large copper butterfly and the Callimorpha quadripunctata moth.

At Lake Metalleiou humans have introduced trout. Fishing is allowed under controlled conditions.^[8]