Although Chiavari is predominantly urban, there are areas around the town with a medium and high rate of biodiversity.

Historically, it is one of the most famous centres for the study of Ligurian botany. We should mention the Chiavari botanists Federico Delpino and Bernardino Turio, who were the first to study the nature of the valleys and rivers bordering Chiavari in depth, as well as the anthropised plains of the River Entella, once the site of precious wetlands comparable to those around the River Magra today. By virtue of this, Chiavari is included in two Sites of Community Importance, as well as in a Provincial Oasis of Protection of the Fauna.

The site “pSIC Pineta – Lecceta di Chiavari” is the one that most characterises the natural environments in the area. It includes a coastal stretch with holm oak forests (Quercus ilex) and pine forests with maritime pine, domestic pine and Aleppo (Pinus pinaster, Pinus pinea, Pinus halepensis). It contains land belonging to the sedimentary formation of Mount Antola. .

The site has numerous endemic species, including the marine molluscs Toffolettia stritiolata and Solatopupa pallida. Among the flora, the species of greatest interest is Euphorbia biumbellata, at the north-eastern edge of its distribution area. There are also numerous orchids protected by international regulations (CITES).

Another important site that only partially involves the Chiavari areas is the “pSIC Mouth and Middle Course of the River Entella”. The Entella originates from the confluence of three streams (Lavagna, Graveglia and Sturla) in Carasco. The springs of the Lavagna torrent, which flows between the towns of Lavagna and Chiavari like the River Entella, are located in the area of Siestri, in the Municipality of Neirone, perhaps the place mentioned by Dante Alighieri in the verses of the Purgatory.

The site comprises the River Entella, which is about 5 km long. The geology is characterised by alluvial deposits of gravel and clayey sands. The waters are populated by minnows (Leuciscus souffia) and barbei (Barbus plebejus).
For enthusiasts, the main specimens are listed here: the kingfisher (Alcedo atthis), Tawny Pipit (Anthus campestris), red heron (Ardea purpurea), greater short-toed lark calandrella (Calandrella brachydactyla), little egret (Egretta garzetta), gardener (Emberiza hortulana), knight of Italy (Himantopus himantopus), little bittern (Ixobriychus minutus), Red-Backed Shrike (Lanius collurio), gull (Larus melanocephalus), bluethroat (Luscinia svecica), a rare and beautiful bird of Swedish origin, night heron (Nycticorax nycticorax), as well as fish such as the minnow (Leuciscus souffia) and barbel (Barbus plebejus) and, among the Insects, the moth (Callimorpha quadripunctaria). Among the plant species, you can find the yellow iris (Iris pseudacorus), now very rare, but once common in the swampy areas of the plain.