1. Medicine Lake is a stunning and unique destination located in Jasper National Park, Canada. Contrary to its name, Medicine Lake is not actually a lake but rather a geological anomaly known as a \"sinking lake.\" During the summer months, the melting glaciers in the surrounding mountains fill the lake, making it appear as a serene and picturesque body of water. However, during the fall and winter seasons, the water in Medicine Lake disappears through cracks and sinkholes, draining it completely. This occurs because the lake sits atop an extensive underground system of limestone caves and channels, which act as a natural drainage system for the area. As a result, the lake constantly fluctuates, making it a truly fascinating natural wonder to witness.

2. Medicine Lake is open to visitors year-round, although specific services and facilities may be limited during the winter months. There is no specific working time for the lake itself, as it is accessible at all times. However, please note that road access to Medicine Lake may vary depending on weather conditions and park regulations. For the most up-to-date information, it is recommended to check the official website of Jasper National Park or contact their visitor center.

3. There is no admission fee to visit Medicine Lake itself, as it is part of Jasper National Park. However, visitors will need to purchase a park pass to enter the national park. These passes can be obtained at various locations within the park or online in advance. As for transportation, Medicine Lake can be reached by driving along the Maligne Lake Road, which is approximately a 40-minute drive from the town of Jasper. There are no direct public transportation options to Medicine Lake, so having a personal vehicle or joining a guided tour is recommended.