The GPSMAP 66s is a multi-activity handheld GPS device. Whether you\'re walking, biking, climbing, geocaching, kayaking, or working outdoors, this GPS will help make the most of your time. It\'s robust, large display, and waterproof case allow it to be used easily in the worst of conditions. It includes access to the Garmin Explore mobile app to review and sync data, including waypoints and routes & tracks. You can also import GPX route files created from other mapping applications, such as OS Maps. Compatible with the Garmin TOPO digital topographic maps collection.