Unable to answer "What’s the surface here?" – on bridge: Foot Path – way/363061594 via StreetComplete 61.3:

This is a pipe bridge. You walk into a 6 feet pipe across the pond

Attached photo(s):
https://streetcomplete.app/p/313055.jpg

"The address on this POI is different from the building address. It is either a user's mistake, or an issue in the data. Please check this and fix if needed. (This note was created automatically without a user's input. Feel free to close it if it's wrong)."
OSM snapshot date: 2025-10-04T01:14:47Z
POI name: LifeLabs
POI types: healthcare-laboratory amenity-clinic
#organicmaps android 2025.10.23-22-Web

"Mailbox located outside London Drugs. Post Office located inside, at the back of the store"
OSM snapshot date: 2025-08-29T18:18:32Z
POI name: Canada Post
POI types: amenity-post_box
#organicmaps android