Profile: A. Ku

Problem: I would like to display a Map that includes several "hotspots" as Markers, and also draw a route on the map.

Solution: You can create a custom Map View that includes Markers that represent each "hotspot". To draw a custom walking route on a Map, you can use the Google Maps Polyline API. Here's the example from the Google Maps API documentation, edited to use a map created in Toolset:

var mapid = 'map-1'; 
var map = WPViews.view_addon_maps.get_map(mapid);
 
var flightPlanCoordinates = [
  {lat: 37.772, lng: -122.214},
  {lat: 21.291, lng: -157.821},
  {lat: -18.142, lng: 178.431},
  {lat: -27.467, lng: 153.027}
];
var flightPath = new google.maps.Polyline({
  path: flightPlanCoordinates,
  geodesic: true,
  strokeColor: '#FF0000',
  strokeOpacity: 1.0,
  strokeWeight: 2
});
 
flightPath.setMap(map);

Replace map-1 with the ID of your map created in Views. Wrap this code in a 'js_event_wpv_addon_maps_init_map_completed' event handler so it is fired when the map is ready. I provided a more complete example implementation in another ticket: https://toolset.com/forums/topic/add-lines-connecting-markers-in-a-google-map/#post-916035
This ticket creates the polyline using on the marker locations, but your line will be unrelated to the markers.

Relevant Documentation:
https://toolset.com/documentation/user-guides/display-on-google-maps/