Marine Navigation-USA Lake Map

Marine Navigation App offers access to NOAA marine vector charts, freshwater lake maps, USACE inland river maps. Only marine GPS app to have route assistance with Voice Prompts for marine navigation. It has route manager to create new boating routes or import existing GPX/KML routes. It supports Nautical Charts course up orientation. Includes Tide & Currents prediction. * Hardware/GPU accelarated vector charts (text stays upright on rotation). * Voice Prompts for marine navigation (requires GPS