The Varnikai Botanical-Zoological Preserve is a protected natural area situated near Trakai, a historic city in Lithuania. The preserve covers around 1,000 hectares, offering a mix of forests, swamps, and lakes. This area is home to many rare and endangered plant and animal species, such as the European pond turtle, the great bittern, and the osprey. It's also an ideal spot for birdwatching and enjoying nature walks or hikes.