You can walk over a surface in Surfer's 3D view by following the steps below:

1. In a 2D plot window, create a map with 3D data (e.g. a grid-based map, a post or base map).
2. Select the Map in the Contents window and click Map Tools | View | 3D View.
3. Click 3D View | View | Walk.
4. Move your mouse cursor over the 3D view window.  A directional arrow cursor indicates that you are in Walk mode.
   • Scrolling the mouse wheel will move the view up and down in the vertical direction.
   • Click and hold the mouse wheel and drag to pan the view up and down in the vertical direction.
   • Click and hold the left mouse button and drag to begin walking. 
     • Dragging the mouse up and down will move the camera forwards and backwards along the surface in the view, respectively.
     • Dragging the mouse left and right will pan the camera to the left and right in the view. 
5. Press ESC or another tool in the ribbon to exit Walk mode.

Updated November, 2021