Villiersdorp, South Africa

FLOPPY hats and face masks on, hundreds of workers carefully pick a bumper crop of blueberries on the sunny slopes of the Groenlandberg, a spur of South Africa's Hottentots Holland Mountains.

Declared a superfood, the purplish fruit has allowed South African producers to sail through the setbacks of the coronavirus pandemic, exporting punnet after punnet of berries all year.