On OS Maps, find a 'Difficult' and 'Circular' hiking route. Once found, navigate to its detailed page and identify the total ascent, the OS Grid Reference of the first waypoint, and confirm if a '3D Fly-through' option is available.
Navigate to the 'Find Routes' page. Select 'Hiking' as the 'Activity Type'. Click the 'Difficulty - open popup button' (id: 246) and then select 'Difficult' (id: 659). Select 'Circular' under 'Route type'. Identify and click on the first suitable 'Difficult' and 'Circular' hiking route that appears in the results. Once on the detailed route page, locate and state the 'Total ascent'. Locate the 'Waypoints' section and extract the OS Grid Reference for the first waypoint. Confirm the presence of the '3D Fly-through button' (id: 206 on a typical detailed page).
Successfully filter by 'Hiking' activity type. Successfully filter by 'Difficult' difficulty. Successfully filter by 'Circular' route type. Successfully navigate to a detailed route page for a route that is 'Difficult' and 'Circular'. State the exact 'Total ascent' for the selected route. State the OS Grid Reference of the first waypoint listed on the detailed route page. Confirm that the '3D Fly-through button' is available on the detailed route page.