Koijärvi
Koijärvi is a lake located in the municipality of Forssa, in the Tavastia Proper region of Finland. The lake is part of the Kokemäenjoki river basin. Koijärvi is known for its ecological significance, particularly as a habitat for various bird species. The lake's shallow waters and surrounding wetlands create ideal conditions for waterfowl and migratory birds. Conservation efforts have been undertaken to protect the natural state of Koijärvi and its inhabitants. The area around Koijärvi has also been a site of historical human activity, with evidence of settlement dating back centuries. The natural beauty of Koijärvi attracts visitors interested in nature observation, birdwatching, and outdoor recreation. The lake's water quality is a subject of ongoing monitoring to ensure its ecological health. Koijärvi plays a role in the local landscape and contributes to the biodiversity of the region.