We don't need to guess what's underwater thanks to the Garmin ECHOMAP UHD2 63sv. Part navigation aide, part fish finder, this unit includes Garmin Navionics inland maps and data for more than 18,000 lakes with details up to 1-foot contours and shows sharp fish arches with Garmin traditional sonar technology. We can also create our own charts on unmapped waters with the Quickdraw feature simply by driving our boat back and forth over the area we want to fish. Thanks to wireless connectivity, we can network units together, share data with smart devices, and connect to a Force trolling motor to create and follow routes, navigate to waypoints, control speed, and more. This item includes the ECHOMAP UHD2 6" chartplotter, GT54 transducer, power/data cable, tilt/swivel mount, protective cover, documentation, and hardwear to get us on the water--and on the fish.