This free LIte version does not include ability to export watch created waypoints and tracks or to bulk cache maps.
WristRoute Lite is a standalone Apple Watch GPS application for hiking, biking, and other offline activities.
WristRoute Lite can read GPX files containing waypoints, routes, and tracks.
Download a GPX file for an upcoming hike, load it on your watch, and now you can follow the route line on a map, or track your uphill progress against an elevation profile.
WristRoute uses the latest generation of topographic maps from the USGS: US Topo.