Morskie Oko (Eye of the Sea) is the largest and fourth-deepest lake in the Tatra Mountains, located in southern Poland. This stunning alpine lake is a popular hiking destination, accessible via a paved road followed by a walking trail. The hike from the trailhead to the lake takes approximately 2-3 hours, making it suitable for a day trip. While the paved road section can be traversed by horse-drawn carriage (for a fee), the final trail to the lake is not wheelchair accessible. Solo visits are common and safe, but guided tours are also available for those preferring more information about the area's history and ecology. Be aware that the weather in the mountains can change rapidly, so appropriate clothing and footwear are essential. During winter, the trail might be icy or snow-covered, requiring specialized equipment like crampons. The approximate cost involves park entrance fees and transportation to the trailhead; food and drinks are available at the mountain hut near the lake. A typical visit lasts between 4-6 hours, including hiking time and time spent enjoying the lake's scenery.