Hi Thiskal,
thanks for checking Mapillary. I hadn't expected it at the beach :-)
It looks as if there are two types of trash cans. The one with the gray lid and the ones with the orange lid. These are typical for PMD, but sometimes they are violet as well. So its a strong hint but I'm not 100% sure.
The correct tagging for these containers would be amenity=waste_basket , see https://wiki.openstreetmap.org/wiki/Tag:amenity%3Dwaste_basket

