@H Lo asked if there's a way to "see both the contour lines and paths (other country park info) at the same time".
I've found that the Landscape map by Thunderforest shows both the trails that are marked on Open Street map, and the contours of the terrain. I've added that as a new "Map by Thunderforest" layer to the maps here on Gwulo. Here's an example:
https://gwulo.com/map-of-places#16/22.3698/114.1971/Map_by_Thunderforest-Markers/100