We’re at sea level here, but several kilometres from the nearest warming ocean at Mai Po.
Frosty plants are a novelty to photograph, but cold weather can be an extra hazard for wildlife.
Ground frost can damage winter crops like lettuce. Frost is relatively rare (we’re in the tropics, after all) so not many field areas in the New Territories are protected against it.
We’d had a clear, cold night, but a warm sun was coming up !